Leonardo makes the following purchases at the store: 1 backpack for $16.89 5 spiral notebooks for $1.19 each 1 pack of mechanical pencils for $3.68 2 packs of lead refills for $1.88 each leonardo has 2 coupons, each for 45 cents off on the purchase of a pack of lead refills. the coupons are applied after tax and the sales tax is 5% of the purchase. if leonardo paid $30.89 , then he for his purchase. a. did not pay enough b. paid the correct amount c. paid $0.04 too much d. paid $0.57 too much

Option B is correct choice.

Step-by-step explanation:

1 backpack for $16.89

5 spiral notebooks for $1.19 each so total cost =

1 pack of mechanical pencils for $3.68

2 packs of lead refills for $1.88 each so total becomes =

Total becomes : 16.89+5.95+3.68+3.76=$30.28

Sales tax on the purchase = 5 % the value is 0.05*30.28=1.514

Now total cost becomes = 30.28+1.514 = $31.794

Leonardo has 2 coupons, each for 45 cents off on the purchase of a pack of lead refills. That means he got 90 cents off on both packs. So, new total Leo has to pay is : 31.794-0.90 = $30.894

Hence, Leo paid $30.89 in total. So, he paid the correct amount.

$6.42

step-by-step explanation:

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: