If twice the son's age in years is added to the father's age, the sum is 70. But twice the father's age is added to the son's age, the sum is 95, find the present ages of the father and his son.

A standard sheet of printer paper measures 8.5 inches by 11 inches. what is the length of the diagonal of a standard sheet of printer paper to the nearest tenth of an inch?

How to find the lcm of 3 numbers

An orchard has 672 pear trees. The number of rows exceeds the number of trees per row by 4. How many trees are there in each row?

What is the value of this expression (11-t) x[ (15+t) / t]

5.923 which is thousandths place

Domain of f (x) = - 7 (x-8) + 1

I'm trying to figure out the formula for figuring out percentages. For example, what percentage of 3175 is 510?

10!/ 4!2!2! divide using scientific calculator npr c (n, r) = n/r! (n! r!)

What's - x + 10 = - 4

The apartment complex where Stacy lives has increased the rent by $150 every year. When she first rented there 3 years ago, it cost her $600 for a one-bedroom apartment. What will be the rent five years from now?