Tina pet sits to earn extra money. She charges a flat service fee of $20, plus $15 per day. If one of her customers spent less than $110, which of the following inequalities could be used to solve for x, the number of days the customer paid for pet sitting? A. $15x - $20 < $110
B. $15x < $130
C. $15x < $110
D. $15x + $20 < $110

D. $15x+20<$110

Step-by-step explanation:

$15 times the number of days plus the service fee should be less than $110.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,