1. find each sum.
a. (-4) + (-12) =
b. 9+5 =
c. 13+(-5) =
d. (-12) + 9 =

What properties allow transformation to be used as a problem solving tool

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour. what is the cyclist average rate for the round trip in miles per hour ?