4. A cell phone company charges $50 for the
phone plus a monthly service charge of $30.
The equation y = 30x + 50 gives the cost y
after x months. Which is true of the relationship
between x and y?
A. It is linear and proportional.
B. It is linear and nonproportional.
C. It is not linear.
n. It is not linear and proportional,

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

you already gave the answer

step-by-step explanation:

noncoplanar points are points that do not lie on the same line.