Malik starts a job at which his starting salary is $25,500 per year. He expects that his salary will
increase by a constant dollar amount annually. In
12 years, his salary will be double his starting salary.
Assuming salary increases take place only at the
end of a full year, how many years must Malik wait
until his salary is at least $40,000 annually?

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  7 years

Step-by-step explanation:

Malik's salary grows 25,500 in 12 years, so at the rate of ...

  $25,500/(12 yr) = $2125/yr

To get his salary up to 40,000, it must grow by ...

  40,000 -25,500 = 14,500

To grow that much will take ...

  $14,500/($2125/yr) ≈ 6.82 yr

Malik must wait 7 years until his salary is at least $40,000.

At the end of the 7th year, Malik's salary will be raised to ...

  $25,500 + 7·2,125 = $40,375

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

8496 cars

step-by-step explanation: