A plumber charged $18 for 15 minutes of work. If the plumbers fees remain at a constant rate, how much would the plumber charge for 1 hour of work?

Solve for 2 unknowns : 2a+b=5; 3a+2b=9

Simplifiy by combining like terms 6x+3*+2*+4r

There are 48 students goin on a field trip. one fourth are girls. how many boys. are going on the trip?

Solve the equation 3n-n=b-1 for n in terms of b

Does anybody know what 12 (x-8) = 66

Which ordered pairs are a solution to the equation y=x-3? (choose all that apply.) bracket (9, - 18) bracket (2, - 1) bracket (9, 6) bracket (1, 18) bracket (1, - 7) bracket (5, - 14) ?

What is the equation to mc2 aka mc square

True or false? 12-x=x-12 (for all values of x)

Olivia has $220 to buy presents for her 3 sisters and 2 nephews. She wants to spend $10 more on each sister than she spends on each nephew.

How do you factor - 28