Answer:
C=-3t+30
Step-by-step explanation:
20% because 4 dollars is 1/5 of 20
2 × n - 1 = x
for example:
6:3
2.7
ratios help
2.5 : 5.8 :: x : 6.2
2.5/5.8 = x/6.2
solve for x :
x = approx. 2.7
