Well the +7 also effects your graph but the coefficient 4 determines the stretch or compression of your graph. A higher coefficient compresses your graph more.
Answer:
the common multiple between 12 and 20 is 60
Solution :
Give that a shark can chase prey about 30 miles per hour.
1 hour = 60 minute
by using unitary method, we will convert miles per hour into miles per minute
in 60 minutes the shark can chase the prey 30 miles
In 1 minute the shark can chase 
Hence the shark can chase the prey about 0.5 miles per minute.
Answer:
9/2
Step-by-step explanation:
3 x 60 = 180 minutes
180 minutes over 40 minutes
divide both by two and you get 90 minutes over 20 minutes