Question

The price of a set of headphones that regularly sells for $99 increases by 30%.

a. What is the sum 100% 1 30%? How can you use that sum to write an expression for the new price?

b. Write two different expressions that you can use to find the new price. Show that they are equivalent.

Answer 1

I say b because you have multiple by percent to get your equivalent for new price

Answer 2

Explanation:

A) Answer is 100% + 30% = 130%

or $99 + $29.7 = $128.7

An expression :

99(0.99×p) = $

p = percent %

B) It's easy just make an equation that can resemble the same thing like 200% + 60% + 260% but then you can simplify and you can do 10% + 3% = 13% as like a simplified version or you can subtract 128.7 - 29.7 = 99 and write the 99 as 100%.

Hope that helps/what you were asking for and you can understand it!