How to find variables easily

What is the solution to 7x-40=-5?

The axis of symmetry for the function f (x) = - x2 - 10x + 16 is x = - 5. What are the coordinates of the vertex of the graph? (-5, 41) (-5, 56) (-5, 76) (-5, 91)

What does the value of the LCM represent

The area of a parallelogram is 420 cm2 and the height is 35 cm. Find the corresponding base.

Skateboards are on sale at Susan's skateshop for 30% off. Express the discount as a fraction

How many ways are there to partition a group of 16 people into: (a) a group of ten people, a group of four people, and a group of two people. (b) a group of ten people and two groups of three people. (this is a little tricky) ?

A type of cell reproduces by splitting itself in half. One cell becomes 2 cells, 2 cells become 4 cells, and 4 cells become 8 cells. What type of sequence does the number of cells represent, and why?

Ayuma's salary is $68,520 annually. How much does he get paid bi-weekly?

What is 29--√? Place a dot on the number line at the best approximation. a number line that goes from 2 to 6 with 11 segments each increase

Are all of the vertical slices of a rectangular pyramid the same kind of shape?