1. A newspaper charges $50 per half-page ad and $80 per full-page ad. Gavin has a budget of $750 to purchase 12 advertisements.
(a) Define a variable for each unknown. Write a system of equations to represent the situation.
(b) How many half-page advertisements does Gavin purchase? Show your work.
(c) How many full-page advertisements does Gavin purchase? Show your work.

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.