The cost c of producing x number of calculators is given by c = 4.50x + 3000 and the revenue r from selling is 16.50x. find the number of calculators that must be sold to break even

The Leonardo family saves the same amount of money each month for vacation. From January 1st to September 30th they saved $ 1314. How much does the Leonardo family save each month for vacation.

If the diameter of a men's basketball is 10 inches and a women's is 9 inches, what is the approximate difference of their volumes? 133.9 in. 3 137.6 in. 3 141.9 in. 3 145.6 in. 3

Sal washed 5 cars in 50 mins

If skylights on the roof are lined up in 3 rows with 9 skylights in each row, how many skylights are there all together?

You have 30 dollars at the beginning of the sale. You earn 20 dollars every hour. Write an equation that represents the amount of money after x hours

What's is 7x90 it not hard it's not easy it medium

Martin charges $10 for every 5 bags of leaves he rakes. Last weekend, he rakes 24 bags of leaves. How much money did he earn?

A customer left a 66.00$ for a bill that is 9nly 55.00$. What is the tipped amount?

Find the zero of the polynomial 2x²+9x+4

M over 4 = - 13 what does m = ? ... ?