How do I write an expression for this word problem?

How do I write an expression for this word problem?

A computer can perform 4.5 times 102 instructions in a second.

help me solve this

Use the numbers 3,4,5, and 6 (each exactly once) together with the operations +,•, and / to create a numerical expression whose value is 22.

Harry has an activity book. He pastes small square shaped stickers in a square space provided for stickers in the box with sides of X inches as shown. Each sticker has an area of 1/4 of...

i need an expression fast

Simplify the expression. Write the answer with positive exponents. Assume all variables represent positive numbers. (x2z)1/4/x-1/2z1/2

What is the value of this expression when r=2,s=1,and t =0?Explain your answer

need help rewriting it

Are there any quick ways to find two numbers that can both be multiplied and added to reach certain numbers? For example: If I wanted to find a number that multiplied to 14 and added to 9, I...

98+(-54)-(-36.5)+(-44)

i dont understand any of this