The x, which is a letter that stands for or represents an unknown value/number, is called the:

Two planes, A and B, start from the same place and move in different directions, making an angle of 50º between them. The speed of plane A is 200 miles per hour, and the speed of plane B is 300 miles per hour.

How many 12.6 pounds on an ounce

Svetlana's hair is 4 centimeters long. her hair grows 1.5 cementers per month. Svetlana want her hair to grow so that it is at least 7 centimeters long.

What was the original price if after 25% discount it became $285?

Three zeroes in a fifth degree polynomial function are 1/3,4-61, and - 2+11i What are the remaining zeroes of the function? 4+6i,-2-11i -1/3,4+6i, 2+11i -4+6i, 2-11i 3, 4+6i,-2-11i

Linda bought 56 books. Linda bought 8 times as many books as Pablo. let b be the number of books pablo bought

Which equation should be used to solve 81 + * = 108

Nadia started at 19.26 feet below sea level and then changed her altitude by climbing a total of 5,437.8 feet up from her initial position. What was Nadia's altitude at the end of her climb

A toy manufacturer needs a piece of plastic in the shape of a right triangle with the longer leg 6 cm more than the shorter leg and the hypotenuse 12 cm more than the shorter leg. How long should the sides of the triangle be?

To celebrate, Clare went out to eat with her 3 friends. Their meal, including tax, was $75. If they left a tip, what is their total bill including the tip.