Can we prove that △pqr and △pqs are congruent using the side-side-side (sss), side-angle-side (sas), or angle-side-angle (asa) congruence postulates?

Solve 3x-18=2y and 5x-6y=6 by elimination show work

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.

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$