The total income for the Mr. Johnson's apartment building can be represented by the equation 5r - 20 - 3p, where is the amount of rent paid by each tenant, c is the cost
of the cable bill, and p is the cost of the phone bill. If the rent is $500, the cable bill is
$80 and the phone bill is $40, what is the total income for Mr. Johnson?

A. 2,500
B. 2,050
C.2,340
D.2,220

the answer on ed. is:

c. "the graph of f(x) has exactly two x-intercepts."

hope i could someone! : )

0 and 5 minutes

step-by-step explanation:

given that one morning eight buses arrive late by the number of minutes given below:

0 8 2 6 9 2 0 7 8

write these in ascending order

0   0 2 6 7 8 8 9

in the afternoon two more buses arrive at the bus stop say by x and y minutes late.

total number of buses = 10

median = average of 4th and 5th after arranging in ascending order

since 4th entry is 6, the values of x and y should be below 6

also given 0 is the mode so either x or y or both should be 0 because then only 0 gets the maximum frequency and hence mode

thus we have

0 0 0 2 6 7 8 8 9 and another unknown entry which is below 6.

since median is 3.5, we have the unknown entry to be 5 only because then only median =( 2+5)/2

thus the after noon buses were late by 0 and 5 minutes.