208k views
0 votes
??????????????????????????

??????????????????????????-example-1
User Painiyff
by
5.0k points

1 Answer

5 votes

Answer:

Explanation:

so they used a total of 560 units

we are next told that if the units of usage are 360 or less use the 1st formula, but there is morn than 360 units in the given amount so use the 2nd formula

0.1(x-360+54)

0.1(560-360) + 54 = monthly bill

20+54 = monthly bill

74 = monthly bill

answer D looks good

User Joe Atzberger
by
5.1k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.