Question

Please help me with evaluating
Evaluate 2p - 3r + t for p = 10, r = -4 and t = 5.
Evaluate prt for p = 10, r = -4 and t = 5.
and
Evaluate p ^2 - r ^2 for p = 10, r = -4 and t = 5.

Answer 1

in 2p - 3r + t substitute p = 10, r = -4 and t = 5.