9 (a - b) + 5 (2a - 2b)
mutiply the first bracket by 9
(9)(a)= 9a
(9)(-b)= -9b
mutiply the second bracket by 5
(5)(2a)=10a
(5)(-2b)= -10b
9a-9b+10a-10b
9a+10a-9b-10b ( combine like terms<em>)</em>
Answer : C. 19a - 19b
Jacob: 32.90/7 = $4.7 per one T-shirt
Kyle: 60.00/12 = $5 per one T-shirt
Jacob paid less per T-shirt than Kyle.
Therefore, Kyle was wrong.
Answer:
The value of the motorhome can be expressed as x - .35x
Step-by-step explanation:
This is because it has lost 35% of it's value. Therefore, we can subtract that from the original value to get its current value.
Answer:
y=1/2x+8
Step-by-step explanation:
-4=1/2*8+b
-4=4+b
b=4+4
b=8
Answer:
Step-by-step explanation:
A lot of adults went to the event and gift priced