How can i do substitution while multiplying

Owen simplified the expression r-8 s-5. r-8s-5 = 1r8 ⋅ s5 = s5r8

The lengths of salamanders have a normal distribution with mean 15cm, and standard deviation 2cm. What is the probability a salamander has length less than 13cm? (provide your answer as a decimal)

A worker can complete the assembly of 15 tape players in 6hours. At this rate, how many can the worker complete in a 40-hour work week?

The graph represents Jason's weight loss over 5 months. Which statement is true?

Mary has a discount coupon of 8% at a grocery store. She buys items worth $108 from store. How much does Mary need to pay after using the discount coupon? Measuring Up to the Texas Essential Knowler 18 mir 6 H $100.00 F $8.

The top surface of a desk has a length of 5.6 ft and the length is 4 times its width what is the width of the desk

The volume of a fish tank is 20 cubic feet. If the density is 0.2 (fish over feet cubed), how many fish are in the tank? 2 4 50 100

You use 43 muscles to frown. When you smile, you use 32% of these same muscles. About how many do you use when you use

Is 1.0227 repeated a rational number

How to write distributive property of 144/8