Answer:

Step-by-step explanation:

If the tip varies directly with the number of guests, it means that an increase in the amount of tip would be as a result of an increase in the number of guests and a decrease in the amount of tip would be as a result of an decrease in the number of guests.

If we introduce a constant of proportionality, k , the relationship would be

t = kg

Given that

When t = 18, g = 10, then

18 = k × 10

k = 18/10 = 1.8

Therefore, the equation representing the relationship is

t = 1.8g

9 am to 6 pm is a 9 hour difference. hope this helps

**Answer:**

7k + 88

**Step-by-step explanation:**

15k + 8(11 - k)

15k + 88 -8k

-8k -8k

7k + 88

Answer:m1=-3,m2=3 the equation has 2 solutions

**Step-by-step explanation:**

3.725290298e19