Answer:
1. (ab)c =abc
2. 3y + 4y =7y
3. 6 × 7= 42
Step-by-step explanation: I hope this is what you want. Hope this help :D
Answer:
1127
Step-by-step explanation:
Using PEMDAS rules, we first add anything in parentheses:
(59 + 56) x 10 - 23 becomes (115) x 10 - 23
Then we do exponents, which we don't have so we skip it
Then we do either multiplication or division (whichever one comes first)
115 x 10 - 23 becomes 1150 - 23
Then we do either addition or subtraction (whichever one comes first)
1150 - 23 becomes 1127
Answer:
this should help I guess pls tell me if it was wrong
Answer:
9
Step-by-step explanation:
The exterior angle is equal to the sum of the 2 opposite interior angles, therefore:
9x + 9 = 45 × 5x
4x = 36
x = 9