Answer:
x² + 3x - 28
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor
(x + 7)(x - 4)
= x(x - 4) + 7(x - 4) ← distribute both parenthesis
= x² - 4x + 7x - 28 ← collect like terms
= x² + 3x - 28
Answer:
You will have 48 blue streamers.
Step-by-step explanation:
This question can be solved by proportions, using rule of three.
We have that:
For 12 blue streamers, there are have 9 gold streamers. How many blue streamers are there when there are 36 gold streamers?
12 blue - 9 gold
x blue - 36 gold
Applying cross multiplication

Simplifying by 9

You will have 48 blue streamers.
The third one because each banner costs $16 and x is the number of banners, $32 is just a one time fee so there is no x.
Answer: 0.85 kilograms
Step-by-step explanation:
Answer:
23,040 cm
Step-by-step explanation:
2 × 16 × 6 × 3 × 5 × 2 × 4