Set it up X/15=60/100 cross multiply to set up an equation 100X=900 and X=9. then you add 9 to 15 to get 24.
The proportion would be something like 1.5/10 = .75/5
Answer: 
Step-by-step explanation:
Given
Length of the plank is 
Foot of the flank is
away from the wall
Lizard climbs 2 m up the wall
from the figure, the two triangles are similar

So, the distance from the wall is

Answer:

Step-by-step explanation:
Step 1. Convert litres to millilitres

Step 2.Convert millilitres to fluid ounces

Answer:
(x + 7) (x - 3)
Step-by-step explanation:
Find 2 numbers that add to 4 and multiply to -21
(x + 7) (x - 3)