What are some strategies that you can use to make simplifying and evaluating the expression more efficient and accurate?

Combining like terms can make simplifying and evaluating expressions more efficient and accurate. When one combines like terms, they group numbers with the same variable (or with no variable) together. This reduces the amount of numbers in the problem, thereby making it simpler to solve.

the image of (6, 9) under a dilation is (4, 6). the scale factor is

b. 2/3

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8