Answer:
10408 ft
Step-by-step explanation:
convert miles to ft
4 miles/hr * 5280 ft/ mile = 21120 ft/hr
convert hr to min
21120 ft/hr * 1hr/60 min = 352 ft/ min
multiply by 40 minutes
352 ft/min * 40 min =14080 ft
Another way to write the expression the answer is this (t.14)-(t.5)
Length = 20 ft
If he uses 60 ft of fencing to line his rectangular backyard, then the perimeter is 60 ft.
Perimeter formula is ((Width × 2) + (Length × 2))
10 × 2 = 20
20 × 2 = 40
40 + 20 = 60
Domain: (-infinity, infinity)
range: (-infinity, infinity)
She nee to save $60 more so she can buy a new bike