18-7x=-20.5 what is the value of x

How to create a system equation

A chef wants to make 2 quarts of salad dressing. Currently, he has 18 parts oil, and 4 parts vinegar. How much oil must be added to get 24 parts oil and 3 parts vinegar? Write and solve an equation.

What number raised to both the first power and the second power equal 1

If n is an even number which statement is true about n+1

Write an inequality for the sentence: twice a number, decreased by the quotient of that number and 2, is at least 12

7 10:03 AM Lines 1 and m are parallel. 110 Find the measure of the angle d (use degrees).

The value of the building owned by two veterinarians went from $125,000 to $117,500. what is the percent decrease in value?

A submarine is driving at a constant rate of 12 feet per second

Translated in algebraic expression:the sum of twice a number increased by 6

Braces are used in interval or roster notation?