7. if you have a fraction with the same denominator, to add them together you add the numerators and the keep the denominator the same. to subtract, you subtract the numerator and keep the denominator the same.
8. the whole number times the denominator and add the answer to the numerator. to subtract you so the same just subtract rather than add
170^3 this is the answer just make sure you do you're work.
Y=4x-14 to find the slope you need to do
rise/run and to find b you need to see where the line crosses the y axis
Let the numbers be x and y
y=5x
y-x=236
5x-x=236
4x=236
x=59
5=5*59=295
