107. sheila is painting identical circles on her
bedroom walls as decoration. the diameter of
each circle is 2 feet. if she has enough paint to
cover 999 square feet of surface area, how many
circles can she paint? (use the approximation
333/106 for pi.)
a. 79
b. 159
c. 318
d. 3,138

Solve the system. -a+4b+2c=-8 3a+b-4c=9 b=-1 a.(0,11) ,-1,2) c.(1,1,-2) d.(2,-1,-1)

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Which of the following tables represents exponential functions?