Is Allie is 16 years old and her brother is 20 years, how far apart are they?

Numbers that are 7 units from - 3

Y is 1/3 more than 4 times the value of x The difference of 3y and 12x is 1.

John and Peter share $180 in the ratio 3 : 2. How much more money does John receive than Peter?

Find the average speed in km/hr of 700m travelled in 5 minutes.

Find an ordered pair x, y 4x-y=5

a tree casts a shadow 27meters long. a nearby by post that is 5 meters tall casts a shadow 3 meters long. how tall is the tree? (hint: set up proportion to solve)

13. Michael deposits $800 into an account that pays 8% interest rate every year. Write an exponential function giving the amount f (t) (in dollars) the Michael will have after t years.

What is the range of f (x) = - x2 4, if the domain is {2,0,1}? A) {0,3,5} B) {0,4,3} C) {0,4,5} D) {8,4,3}

There are 90,000 famillies who donated to Nina's Fund. They donated 40 dollars each. How many dollars were raised?

Sharon called 3 friends on Friday. On Saturday, each of those 3 friends called 3 different friends. On Sunday, each person who was called on Saturday called 3 different people. How many friends were called on Sunday?