Answer:
l = 
Step-by-step explanation:
Given
P = 2(l + w) ← distribute right side
P = 2l + 2w ( subtract 2w from both sides )
P - 2w = 2l ( isolate l by dividing both sides by 2 )
= l
One is one the number line and the 7/10 is between 0.8
Answer:
Step-by-step explanation:

Answer:
1. y=7.2
2. x=18
Step-by-step explanation:
1. Triangles CMN and CBA are similar triangles (by AAA postulate). Similar triangles have proportional corresponding sides, so

2. GK is angle G bisector. Use angle bisector's property:

1/5 and 3/5
Hope this helps!