Simplify the expression 2j+4j+j+7

It is given that a+b=6 and ab=7. Find the value of a^2 + b^2.

How many gallons of bleach are in x gallons of a 70% bleach solution

Determine whether the function ƒ (x) = x (x3 - x) is even, odd or neither.

How to find an angle of triangle that is not right angled when two sides are given

The price of backpacks at a store are $22, $16, $39,$35,$19,$34,$20, and $26. Find the mean absolute deviation of the prices.

For the polyhedron, use Euler's Formula to find the missing number. faces edges: 8 vertices: 5

The original price was $12, increased to $15. Find the percent increase

four times the smaller of two consecutive odd integers is the same as 67 less than 5 times the larger integers

True or false: given that there are only 10 different possible samples of size two that can be selected from a population of five values, the sampling distribution of the mean would be composed of the means of these 10 samples.

The sale price for a bicycle is $89.90. the sale price includes a discount of 20%. what is the original price of the bicycle