$52 sweater on sale for $31.20 find the percent of discount or markup

40%

Formula explanation:

Our formula we will be using is: a=pw

a is the part amount, p is percent and w is the whole amount.

We need to find the percent so our formula will look like this:

a is $31.20 | p is UNKNOWN | w is $52 | $31.20=p($52) |

Step-by-step explanation:

First, we need to divide:

$31.20 divided by $52 = 0.6

We need to make 0.6 into a percent to subtract by 100:

0.6 = 60% | 100% - 60% = 40%!

WRITTIN FORM:

40% is the percent of discount/markup.

            Hope this helps!

            ~Hocus Pocus

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

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