Answer:
(5z + 4) + (3z - 6) = 8z - 2
Step-by-step explanation:
(5z + 4) + (3z - 6)
Combine them by their like terms.
(5z + 3z) + (4 + (-6))
Add 5z and 3z.
8z + (4 + (-6))
Add 4 and -6.
8z + (-2)
Simplify.
8z - 2
Answer: b. 6(x + 4)
Step-by-step explanation:
The given word phrase = the product 4 more than x and 6
where , 4 more than x is equivalent to 
Therefore the algebraic expression for the given word phase "the product 4 more than x and 6"
=

Hence b. is the right option.
The algebraic expression for the given word phase is 
Answer: 37 hours and 30 minutes
Step-by-step explanation: divide 2,250 by 60=37.5
The factor between will be 15