Twice the difference between x and k

1. Suppose the university bursar said that 600 students entered for Business Mathematics, 300 entered for Statistics while 173 students entered for both Business Mathematics and Statistics. How many students enrolled in the two courses altogether?

What is the range of the function y = |x |?

Suppose you choose a marble from a bag containing 5 red marbles, 4 white marbles, and 5 blue marbles. you return the first marble to the bag and then choose again.

At most, Charlie can spend $50 on bread and turkey for a picnic. He already bought a loaf of bread for $2 and will buy turkey that costs $6 per pound. Write and solve an inequality to show how many pounds of turkey he can buy.

The subway sold 439 tickets in one day. It wants to sell that amount each day over the next 13 days. How many tickets does the subway need to sell over the next 13 days?

A house purchased for $226,000 has lost 4% of its value each year for the past five years. What is it worth now?

What is 38:3648 long division

Write the expression in standard form: 4 (2a) + 7 (-4b) + (3 * c * 5).

What is the answer to: 2 (4z-1) = 3 (z+2)

Raj paid $5.04 for 6 cookies. Heath paid $4.00 for 5 cookies. Which of the following statements is true? A.) raj paid more per cookie B.) heath paid more per cookie C.) they paid the same amount per cookie