Amir has spent the last three months saving money for a $1,400 computer in his local electronics store. so far he has saved $1,200. today, he receives an email saying that all computers in the store are 25% off for one day only.
if the sales tax charged at the counter is 7%, does amir have enough money to purchase the computer today?
select one:
a. no, amir needs about $25 more.
b. yes, amir has the exact amount needed.
c. yes, amir has about $25 more than he needs.
d. yes, amir has about $75 more than he needs.

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.