Answer:
(2x+1)(2x−1)
Step-by-step explanation:
First find out how many Carly sold:-
90 ÷ 2 = 45
Carly sold 45 rolls
Add to find out how many the sold together:-
90 + 45 = 135
Jasmine and Carly sold 135 rolls of wrapping paper together.
Answer:
d) 40.78 inches
Step-by-step explanation:
See attached for details
Let y directly proportional to X
thus y = CX
where c is proportionality constant
given c= 9
thus y = 9x