Find the length of the second base of a trapzoid with one base measuring 12 feet a height of 4 feet and a area of 58 square feet

Choose the more precise measurement. 26.4 cm or 8.39 cm

In a column proof the right column states your reasons

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13