The graph shows a proportional relationship between the number of books sold at a yard sale and the amount of money collected from book sales. What is the constant of proportionality?
0.67
1
1.5
2

Consider this expression and the steps to evaluate it. 4^5(−2)^9/4^8(−2)^3 1. apply the quotient of powers:      (−2)^a/4^b 2. evaluate powers:           c/d select the value of each variable. a = _ b = _ c = _ d = _

What is the slope of any line parallel to the line 8x+9y=3 in the standard (x,y) coordinate plane?

What are the triple angle formulas? is it related to double angle identities?