24 points!
select all the polygons that must have only right angles. (show work

a. square
b. hexagon
c. rectangle
d. rombus
e. quadrilateral
f. triangle

Find the solution of system of equation y= x-4 y=4x+2

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Use properties to rewrite the given equation. which equations have the same solution as 2.3p – 10.1 = 6.5p – 4 – 0.01p?