8. estimate each product and quotient, then calculate.
a) (-210) + (+7) b) (-36) * (-8)
c) (+492) + (-3) d) (+9) x (-15)
e) (-312) + (-4) f) (-28) * (+11)
9. calculate.
a) (+7) × (-3) - (-25) + (-5) b) (-39) - (+4) + (+2) + (453)
c) (-56) + (-9) x (+3) - (-76) d) (+42) + (-7) + (-b) (+2) me i'm lost me in number 8,9

Design a number line containing five (5) points2.benin, one of the smallest countries in africa, has a total area of 43,475 square miles. the population of the country was recently estimated at 10,160,555. about 3,657,790 people live in rural areas. the country has only about 870 miles of surfaced roads. a. round off the total population to the nearest hundred thousand people. b. round off benin’s area in square miles to the nearest thousand. c. round off the number of miles of surfaced roads to the nearest ten. d. round off the number of people who live in rural areas to the nearest million.

Areal estate agent earns $32,000 a year plus $1,000 for each apartment he sells. write an equation that shows the relationship between the number of apartments abe sells,n, and the total amount he earns in a year,e. what is the total amount abe would earn from selling 10 apartments in one year

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2