All of the items in a bicycle shop are on sale for 30% off the regular price. rene spends $74.90 to buy a bicycle and a helmet (without taxes). if the regular price of the bicycle is $85, which equation can be used to find the regular price of the helmet, h?
a. 0.3(74.90+)=85
b. 0.3(74.90+h)=74.90
c. 0.7(74.90+h)=85
d. 0.7(85+h)=74.90

D

Step-by-step explanation:

74.90 is the price of bicycle AND helmet together AFTER 30% discount.

So sum is

This sum should be discounted 30% to get our discounted price (which is 74.9)

Discounting something by 30% means multiplying that thing by

So now we have 0.7 multiplied with the sum of , which will give us 74.9. This in equation is:

Answer choice D is correct.

answer: b.48 for

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice