I'll treat these like they're two seperate problems because how you set it up they're not together. If it's one whole problem please tell me and I'll solve it that way. :-)
First one: 3x+9+8x + 12
Collect like terms and simplify
(3x+8x)+(9+12)
11x+21
Second one: 2x + 6+x² + 6x + 9
Collect like terms and simplify

8x+15+
Hope this helps you, have a BLESSED and wonderful day, as well as a safe one!
-Cutiepatutie ☺❀❤
Answer:
he must work 8 hours
Step-by-step explanation:
soln:
given,
$8=1 hour
or,$1=1/8 hour
so,
$64=64*1/8 hour
•°•$64=8 hours
Day: Monday, Tuesday, Wednesday, Thursday, Friday
frequency: 3, 1, 1, 1, 5
Frequency is the repeated number of times so you just need to count how many times a day repeats.
Answer:
37 ft
Step-by-step explanation:
The Pythagorean theorem tells you the length of the diagonal is the square root of the sum of the squares of the side lengths:
diagonal = √(30^2 +22^2) = √1384 ≈ 37 . . . . feet