Write an algebraic expression to find the sum for each situation.
4. the varsity football team gained 7 yd on one play and then lost 4 yd.
5. the airplane descended 140 ft and then rose 112 ft.
6. the squirrel climbed 18 in. up a tree, slipped back 4 in., and then
climbed up 12 in. more.
7. the temperature was 72°f at noon. at midnight a cold front
moved in, dropping the temperature 12°f.

Select the correct answer from each drop-down menu. the table shows the annual sales revenue for different types of automobiles from three automobile manufacturers. sales revenue (millions of dollars) suv sedan truck marginal total b & b motors 22 15 9 46 pluto cars 25 27 10 62 panther motors 26 34 12 72 marginal total 73 76 31 180 the company with the highest percentage of sales revenue from sedans is . of the annual sales revenue from suvs, the relative frequency of pluto cars is .

Solve for the equation. 4x - 13 = 2x + 9

Abox of chocolates cost $7 which equation relates the number of boxes sold parentheses x parentheses and total cost of the boxes sold parentheses y parentheses