Complete the square x2 + 4x +3=15 somebody help

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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.]