A lake’s level dropped 3 3/4 inches for 21 days during a drought. A heavy rainstorm raised the level by 8.25 feet. Afterwards the level dropped 9.5 inches per day for 4 days. Scientists want to determine if the water level increased. Use your knowledge of rational numbers to determine the change in water level. 1) Complete the S and O steps - S – O – 2) Draw a model to represent the problem in the space provided 3) Determine the level of the lake’s water after all the events. Show work

the answer is c. 23/3

you forgot an image

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

the answer is a. 72. but i cant answer with less than 20 characters so here's some random text talking about it.