Answer:
12 hours
Step-by-step explanation:
Step 1:
70 : 1 Ratio
Step 2:
70 : 1 = 840 : x Equation
Step 3:
840 = 70x Multiply
Step 4:
x = 840 ÷ 70 Divide
Answer:
12 hours
Hope This Helps :)
Answer:
Step-by-step explanation:
Let the cost be A.
a) <u>Cost to run ad for one week:</u>
- A = 35 + 5.25 (15 - 4) = 35 + 5.25*11 = 92.75
b) <u>Cost to run ad for four weeks:</u>