The graph of f(x)=2^x reflected across the x axis

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary