Question 1: Like terms have the same variable, so it is 7b and b.
Question 2: Should be 6y and -9y..
Question 3: the answer is 1. It's 2n because it has the same variable.
Question 4:3a2b
Question 5: 2
Question 6:4x
Question 7:11v
Question 8:-8n
Question 9:-2x
Question 10:-2x this is the same as question 9?
Question 11:2r-14
Question 12:7m-7
Answer:
681 feet
Step-by-step explanation:
Let x represent the distance between campsite and the base of the cliff.
We have been given that Haylee hikes to the top of a 120-foot vertical cliff. From the top of the cliff, the angle of depression to her campsite is 10∘. We are asked to find the distance between campsite and the base of the cliff.
We can see that angle of depression forms a right triangle with respect to ground, cliff and campsite.





Upon rounding to nearest foot, we will get:

Therefore, the campsite is 681 feet away from the base of the cliff.
Hey!
91 ÷ 7 = 13
So, we know that Luke paints one portrait every week.
13 × 4 = 52
So, Luke paints 52 portraits in 4 weeks.
Answer:
Step-by-step explanation:
(-9)⁰ = 1