When solving this system of equations using linear combination, what should you do FIRST? {−x+y=−11
{2x+y=19

A) Solve the first equation for y.

B) Multiply the first equation by -1.

C) Multiply the first equation by -2.

D) Add the two equations together.

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?