7. ABCD is a rectangle. P, Q, R are points on AB, BC, CD respectively such that PQR is a right angle. Prove that BQ • QC = PB •CR. ​

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.