Answer:
B) 18.
Step-by-step explanation:
Add them up then divide by the amount of numbers there are.
First, you combine like terms. I would start by circling the term and the sign in front of it. (A term is a piece separated by an addition/subtraction sign.) You can only combine terms with the same variable. 4.8a-2.1a-6.3b+7b is the same as your equation, just rearranged. Then, subtract (4.8a-2.1a) which is 2.7a. Add (-6.3b to 7b) The answer is 0.7b. If you have any questions, you can message me!
this is non linear because the rate of change is not constant.
3rd answer
24.5 you take 3.5 and times it by 7 do get the distance.
To evaluate when plugging in numerical values for variables, simply put the numerical values in the place of the corresponding variables:
