Combine like terms.

(-3y2 - 7y - 9) - (4y2 + 6y + 9)

a. y2 - y

b. -9y2 - 11y - 18

c. 7y2 + 13y + 18

d. -7y2 - 13y - 18

If δmtv is reflected across the y-axis, what are the resulting coordinates of point m? a) (-2, 5) b) (-5, 2) c) (5, -2) d) (-2, -5)

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

An octagonal prism has jow many lateral faces?