Hector is 22 years older than his sister. in 5 year, he will be 3 times as old as she will be. how old are hector and his sister today?

Prove that nm is an even integer only and only if n or m is even

What is the answer to - |-9|

Pamela sanders needs to pack 47 coat hangers. Can you recommend how she could tie them together in a number of equal-size groups greater than 1 and less than 47.

What is 60 divided by 1.79

If f is a function defined by the equation yequals= f (x) then x is called the

Solve for x show all your work. 10x + 15 = 5x - 10

The formula to convert Fahrenheit to Celsius is C=5/9 (F-32). Convert 18 degrees C to Fahrenheit. Round to the nearest degree.

Find the probability of not rolling factors of 5 on both die

How are you feeling about what is happening around the world?

Abc bookstore sells new books, n, for $12, used books, u, for $8, and magazines, m, for $5 each. The store earned $340 revenue last month. The store sold 5 more used books than new books, and twice as many magazines as new books.