Which of the following are solutions to 2x^2 - 8x - 90? select all that apply. a) 2, b)-5, c)-7, d)9, e)15, f)5, g)7

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

A50% increase followed by 33 1/2% decrease

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]