Abby Cleaning Service had the following information for the 200 customers served this month: Sales Revenue $20,000 Variable Costs 8,000 What is the contribution margin ratio?

= 60%

Explanation:

Contribution ratio represents the marginal benefits of producing an extra unit. It is calculated by the formula.

CM ration= Contribution margin/ sales revenue

Contribution margin = sales - varible costs

therefore contribution margin ratio= sales -revenue/ sales x 100

=$20,000 - $ 8000/ 20,000 x 100

= 12000/20000 x 100

=0.6 x 100

= 60%

if kj of heat is transferred o 1200 g liquid water at 36'c, what would the new temperature of the water be? (he specific heat capacity of liquid water is 4.186 j/g''c)

a. 15'c

b.100'c

c.51'c

d.36'c

c is the correct answer.