Twice the sum of the number and 10 is 60 what is the number?

Benito is selecting samples of five values from the table, which row will result in the greatest mean? population data row 1 4 2 2 3 3 row 2 3 3 4 3 2 row 3 2 4 3 4 3 row 4 3 4 4 7 3 row 1 row 2 r

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Plz ( true - false) all triangles have interior angles whose measure sum to 90.