Sara worked 22 hours last week. joan worked for hours less than sara, and erin worked half as many hours as joan. how many hours did sara, joan, and erin work last week?

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.