There are 4 Russian dolls. The largest doll is 12 inches tall. The height of each of the other dolls is 7/10 the height of the next larger doll. What expression can be used to find the height of the smallest doll?

Simplify the following rational number 1. 1/6+11/6+[5/-6]+7/6

The product of a 3 - digit number and 1 - digit number will be either a 3 - digit number or 4 - digit

How to turn a repeating decimal into a fraction 0.1515?

Given that y varies directly as x and inversely 2m-1 and that y=5 when x-7 and m=4. Calculate A) the constant of various the B) the value of when x=2and m=2 The value of m whn y=2 and x=4

Quadrilateral $abcd$ is a trapezoid with $ab$ parallel to $cd$. we know $ab = 20$ and $cd = 12$. what is the ratio of the area of triangle $acb$ to the area of the trapezoid $abcd$? express your answer as a common fraction.

He price of gold went from $460 an ounce to $483 an ounce in one week. What was the percent of change in the price of gold?

Which simplified fraction is equal to 0.53?

Convert 90 pounds to ounces

Write an expression to show the sum of fourteen and triple eight.

12 (6m + 7n) What does this equal