Sally eats 40 donuts everyday for six after the 6 months, what does sally have?

plz hurry

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how