Tyler painted 4 1/2 square yards of wall area with 3 gallons of paint. How many gallons of paint does it take to paint each square yard of wall?

What is the number 321,000,000 in scientific notation? also what is the number? ?

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.