Answer:
I think it is C
Step-by-step explanation:
Answer: c=36
Step-by-step explanation: c/4-5=4
Add 5 to 4
c/4=9
9 divided by 1/4
C= 36
I think it is 70 but not sure
(7x - 2y) (3x +5y) ( First open brackets)
= 21x² + 35xy - 6xy - 10y² ( solve like terms)
= 21 x² - 10y² + 29xy.