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Math
Com
Eighth grade
> AA.1 Is (x, y) a solution to the system of equations? N46
IS (4, 1) a solution to this system of equations?
2x + 12y = 20
x + y = 5
yes
no

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)