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Use algebraic addition to simplify these expressions. Show your work.
A. (-1)-(-8)
B.(-7)- 7
C.(-4)- 6
D.(-1)+(-7)-4
E. 5-(-5)-(-4)

Afarmer sells 9.5 kilograms of apples and pears at the farmer's market. 4/5 of the weight is the apples and the rest is the pears. how many kilograms of pears did she sell at the farmers market

Which of the following is the shape of a cross section of the figure shown below

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a. p.