Answer:
Mac is 19 years old, Joe is 11 years old
Step-by-step explanation:
2J - 3 = M
J + M = 30
M = 30 - J
2J - 3 = 30 - J
3J = 33
J = 11
M = 30 - 11
M = 19
Answer: (x+20) (x+1)
Step-by-step explanation:
Answer:
45 im not to shur
Step-by-step explanation:
10 + 7 + 9 + 11 + 8 = ?
? = 45
Answer:
-4=n
Step-by-step explanation:
-24=6n
-24/6=n
-4=n
Step-by-step explanation:
(a+bi)2
=a2 +2abi +b2i2
=a2 +2abi + b2. (-1)
=a2 -b2 +2abi
Answer = (a+b(a-b) +2abi