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.

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?