Mr. Brown bought some books at a book sale, including 4 paperback books. 20% of all the books he bought were paperbacks. How many books did Mr. Brown buy in all?

Solve for R in the equation S = mpr.

Which is bigger one seventh of 14 or half of 36? (this is a ratio)

The sum of two numbers is 18. the difference of the two numbers is - 2 find the numbers

32.587 round to nearest tenth

Successful implementation of a new system is based on three independent modules. Module 1 works properly with probability 0.9, Module 2 works properly with probability 0.84, and Module 3 works properly with probability 0.65.

What is 19.30 dived by 200

Leslie works as a security guard at a concert hall. She earns $20 per hour for the first 40 hours she works each week. During a musical festival, she works overtime at a rate of $30 per hour.

What is the answer to 62x24

3/7 of what number is 21?

There are 3 feet in 1 yard this is equivalent to 12 feet in 4 yards which proportion can be used to represent this? 12/1=4/12 1/3=12/4 3/1=4/12 3/1=12/4