The ratio of the number of adults to the number of children in a library is 12:5. If there are 45 children in the library, how many adults are there at the library?

Solve the following system of equations using the substitution method. x=2y

A parking garage has 6 levels. Each level has 15 rows. Each row has the same number of parking spaces. There are 2,250 parking spaces in all. How many parking spaces are in each row? Write and equation or equations to show your work

What is (3*3) + (42:7+6) equal to?

Look at my the expression below. 1/2 (a+b) - (a-b) 2 what is the value of the expression when a = 18 and b = 14?

What is 6.91*2.3 equal two right the answer and show your work

If g (x) = - 3 + 1, Find x if g (x) = 16

Solve the equation and check your answer 6.6j = 26.4

The sum of 3 times a number and 6=2 variable b

Alan can chop 3/4 of a carrot in 1/8 min. How many carrots can he chop in 1 min?

At the end of the summer, a store marks down all the outdoor furniture 18%. A family bought 4 chairs in June at $35 each, then 2 more chairs when they went on sale. How much did all 6 chairs cost?