A) simplify the expression and explain each step. 12 + 3(2y - 3)
b) factor the expression completely 18b - 12

Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota