Ahardware store pays $3,500 for 42 lawnmowers. then the store sells the lawnmowers for $99 each. how much profit does the store make from the lawnmower sales?

i think the equation is 99×42, and then you subtract that number from $3,500.
tell me if i am right, if i am wrong, tell me how to do it.

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

How many sides does a regular polygon have if each exterior angle measures 72a.3b.4c.5d.6

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)