Solve the simultaneous equations
2x + 5y = 16
- 2x + 3y = 8

What value is equivalent to 5 + [5 × (4 + 2)]? a) 35 b) 45 c) 60 d) 110

Three coins are flipped. what is the probability that there will be at least two tails?

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?