Solve to find the values of a and b.
4a + 7b = 38
9a + 7b = 68​

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

What value of x is in the solution set of 4x – 12 s 16 + 8x?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.