X/a -1=y/b for x
ax+2xy=14 for y
a=(f+g/2)h for g

Atriangle includes one angle that 72º. which pair could be the measures of the other two angles of the triangle? a. 9º, 9º b. 26º, 46º c. 53º, 55º d. 72º, 108º

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)