Grace knows that a movie ticket and snacks will cost $18 per person.
there are 4 people in her family.

which equation will give grace the best estimate of how much money it will cost for her family to go to the movies and buy snacks?

Which matrix can be multiplied to the left of a vector matrix to get a new vector matrix ?

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude