The sparkling house cleaning company has cleaned 28 houses this week. if this number represents 40% of the total number of houses the company is contracted to clean, how many total houses will the company clean by the end of the week

70 houses

Step-by-step explanation:

40×2=80

If you multiply the 40% by 2 you get 80%

Multiply the 28 by 2 to get your 80% for houses

28×2= 56

56 houses=80%

You need 20% to get your 100%, but at the beginning you were only given 40%. Divide your 40% (28) by 2 to get your 20% and add that to 56

28÷2=14

14+56=70

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b