Answer: Question not very clear
Step-by-step explanation:
I will like to see the original question, then I will attempt to help you. Surely.
A fraction is a numerical quantity that is not a whole number.What you probably need to relearn is equivalent fractions, Least common denominator and how to multiply and divide fractions.
Answer:


Step-by-step explanation:
The question relates with rules of indices
(a) The give expression is presented as follows;

By expanding the expression, we get;

Collecting like terms gives;


(b) The given expression is presented as follows;

Therefore, we get;

Collecting like terms gives;



Answer:
-1.25
Step-by-step explanation:
Your points one the graph are (-4,4) and (0,-1)
Formula for slope is y1-y2/x1-x2
4--1/-4-0
5/-4
-1.25
Your answer would be 8.3333333 feet per minute