During a summer drought, lake athens was 23 inches below its normal level. after a heavy rain, the water level of the lake rose 5
inches. then after a few sunny days, 2 inches of water evaporated from the lake.
part a: what is the current water level of lake athens?
the current water level is.
inches below normal.
part b: more rain caused the water level of the lake to rise another 3 inches. now how many more inches of water are needed to
bring the water level back to normal?
more inches of water are needed.

50- 250 is correct i did that one too

step-by-step explanation:

what are you trying to solve here

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752