78-68+9= BODMAS
b= brackets
o= orders
d= division division and multiplication left to right
m= multiplication
a= addition
s= subtraction addition and subtraction left to right

The cost c, in dollars, for bananas depends on the weight w,in pounds, of the bananas. this situation is represented by the function rule c=0.5w (graph each function rule.tell whether the graph is continuous or discrete)

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height