Answer:
Trippy
Step-by-step explanation:
Red
Answer:
3
Step-by-step explanation:
Choose a variable to represent the number to be added to 5 and 3.

"Cross-multiply."

Check: The ratio of 5+3 to 3 + 3 is 8:6, equal to the ratio 4:3.
Answer:
4/7
Step-by-step explanation:
When you multiply by fractions you multiply the numerators and denominators
4/1 x 1/7
Anything that doesnt have anything under it always has a 1 as its denominator
A+b+c=45
b=a-5
c=1/2a
a+a-5+0.5a=45
2.5a-5=45
2.5a=50
a=20
b=15
c=10. Here is the answer:20,15,10. Hope it help!