17. Evaluate each pair of expressions.
a. (-3)-8 and -3-8
b. (-3)-9 and -3-9

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(t) = 20t^2 + 14t - 12

Which shows a reasonable estimation for 124% of 42 using the distributive property?