Help! 5x + 6y = 18

2x - 3y = 12

As a first step in solving the system shown, Yumiko multiplies both sides of the equation 2x − 3y = 12 by 6.

By what factor should she multiply both sides of the other equation so she can add the equations and eliminate a variable?

What one-variable equation is she left with after adding?

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

How are sas and sss used to show that two triangles are congruent?

25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition