Answer:
Total cost of Mark's board is $3.75.
Step-by-step explanation:
We are given the following in the question:
Length of wooden board =

Unit cost of board = $0.50 per foot
Total cost of board =

Thus, total cost of Mark's board is $3.75.
Answer:
25× 1/10 = 5/2
Step-by-step explanation:
5/2 or 2.5 lies between 2 and 3
Answer:
B
Step-by-step explanation:
Only B (14,10,8) satisfies all three equations.
Answer:
Step-by-step explanation:
f(x)=g(x)
x²-13x+40=x-5
x²-14x+45=0
Step-by-step explanation:
Time Distance
2 3
6 9
10 15
12 18