Ineed with this

zinnia normally earns $15 per hour working as a tutor, but she earns $20 per hour for every hour she works over 40 in one week. last week, zinnia worked 52 hours. how much money did she earn?
a.
$1,640
b.
$780
c.
$840

$840

Step-by-step explanation:

52 - 40 = 12

12 hours overtime

12 * 20 = 240

40 normal hours

15 * 40 = 600

600 + 240 = 840

$840

C. 840

Step-by-step explanation:

First, solve for the hours above 40.

Since she worked 52 hours, we can subtract 40 from 52 to find the amount of hours she worked overtime.

52-40=12

Since we know that overtime hours are worth more, we can multiply the 12 extra hours by 20.

12*20=$240

Now we need to calculate for her regular hours.

She worked 40 regular hours, so lets multiply that by her regular rate per hour.

40*15=$600

Now add both values for the total income.

600+240=$840

The answer is C. $840

Hope this helps!

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation:

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.