Harry ,louis and niall are working with exponents. harry claims 4^2•4^5=4^10 louis claims 4^2•4^5=4^7 niall claims 4^2•4^5=16^7 which of the students is correct?

Louis is correct

Step-by-step explanation:

we know that

When multiplying two powers that have the same base, you can add the exponents

so

so

In this problem we have

therefore

Louis is correct

it's

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt