3.write the product as a trinomial. (2r – 5)(r + 10) a. 2r2 – 50 b. 2r2 + 15r – 50 c. 2r2 – 25r – 50 d. 3r2 + 5r + 50

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer

Solve the following system of equations express your answer as an ordered pair in the format (a, b) with no spaces between the numbers of symbols 5x+2y=22