Joe is trying to find out how many cubic centimeters of sand he can fit in a hole he dug in his backyard. the size of the hole is shown in the diagram. which of the equations will yield the correct answer?

a) v = 9.1(2.2)(3.8)
b) v = 9.1(2.2 + 3.8)
c) v = 9.1 + 2.2 + 3.8
d) v = 1/2(9.1)(2.2)(3.8)

Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need