12z+42=73
subtract 42 from both sides.
12z=31
divide 12 on both sides to get:
z=2.58
Answer: 6:19
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given,
Interest ( I ) = $ 17
Principal ( P ) = $ 500
Time ( T ) = 2 years
Rate ( R ) = ?
<u>Finding </u><u>the</u><u> </u><u>simple </u><u>Interest</u><u> </u><u>rate</u><u> </u><u>:</u>




Hope I helped!
Best regards! :D