Complete the patterns of equivalent ratios by filling in the gaps. _ : 15
8 : 12
_ : 9
_ : 6
2 :3
HELP!!

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

Find the cosine function that is represented in the graph.

How many terms does the polynomial x^2 y^2 have