Find the sum of ∑3k=1(k2−3).
A. 2
B.11
C. 3
D. 5

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

If a line is defined by the equation y = 5x + 2, what is the slope?