All of the following ratios are equivalent except 2: 3 6/9 6/4 8 to 12

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Which expression is equivalent to 3^3 + 2^2?