Answer:
you left something out but you need to put it in a better understanding
Step-by-step explanation:
Answer:
1 hour and 45 mins or 1 hour, 40 mins, and 5 seconds
Step-by-step explanation:
2n+9+5n=30 combine like terms on left side
7n+9=30 subtract 9 from both sides
7n=21 divide both sides by 7
n=3
Answer: 1064 square meters
Step-by-step explanation: area of a triangle is a= 1/2xhxw a=1/2xhx28
h= 76 (90-14)
a=1/2x76x28=1064
