A tree needs to be staked with four wires. Each wire is attached to the trunk 3 feet above the ground, and then anchored to the ground 4 feet from the base of the tree. How many feet of wire is needed for 7 trees???

so, converting firstly the mixed fractions to improper fractions and then "adding".

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

answer: y=0 if that is what u r looking for