Answer:
1. Yes the parentheses are necessary. To find a fourth of her regular hours you must find the total amount she works during her regular hours.
2. 6
Step-by-step explanation:
(For the second question)
4+8= 12
12 × ½ = 12 ÷ 2
12÷2 = 6
Answer:
28x + 8y + 2
Step-by-step explanation:
Combine like-terms within the parentheses, then distribute -2.
Hope this helps! :)
Answer: 4.2
Step-by-step explanation: calculator
Answer:
55
Step-by-step explanation:
brainliest
Answer:

Step-by-step explanation:
we are given that 
w are sked to step by step factorise the above polynomial













Hence

a) The jay mistake was he did not factorise ![x^3-9x+2x^2-18x^2-9 furtherb) the complete answer wil be [tex]x^3-9x+2x^2-18\left(x+2\right)\left(x+3\right)\left(x-3\right)](https://tex.z-dn.net/?f=x%5E3-9x%2B2x%5E2-18x%5E2-9%20further%3C%2Fp%3E%3Cp%3Eb%29%20the%20complete%20answer%20wil%20be%20%3C%2Fp%3E%3Cp%3E%20%5Btex%5Dx%5E3-9x%2B2x%5E2-18%5Cleft%28x%2B2%5Cright%29%5Cleft%28x%2B3%5Cright%29%5Cleft%28x-3%5Cright%29)