Express the following ratios in the lowest common denominator and compare them. a) 1:2 and 3:4
b) 2:5 and 1:3
c) 2:3 and 5:6
d) 4:7 and 3:8
e) 7: 9 and 5:8
f) 7:12 and 4:9​

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?

Find the maximum value of p= 4x + 5y subject to the following constraints :

How are algebraic expressions evaluated using substitution?