This is the question

you can use a^2+ b^2=c^2

cool? what is the actuall ?

step-by-step explanation:

jane will save more than mariah.

step-by-step explanation:

for jane you have to multiply each year by 3.

by year 3, jane will have $27.

for mariah you have to add each year by 3.

by year 3, mariah will have $9.

in the long run, jane will save more than mariah.

i took the test, and this was the correct answer.

lauren should have multiplied the exponents instead of adding them.

step-by-step explanation:

we have been given the expression

now, lauren did error in the first step. let us see what should have done by lauren to get the correct solution.

we have an exponent property

hence, in the first step we have to multiply the exponents

therefore, lauren should have multiplied the exponents instead of adding them.