Answer:
120
Step-by-step explanation:
3/8 3*8=24, 24+3 = 27
5/12 5*12 =60 60÷5= 65
27 + 65 = 92
212-212- 92=120
522 divide 9= 58 58=1hour 58 x 4=232 add 232 to 522 =754
Answer:

Step-by-step explanation:
we know that
The simple interest formula is equal to

where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
in this problem we have
<em>After 6 months</em>

substitute in the formula above



<em>At the end of one year</em>

substitute in the formula above



Answer:
The cost of the dinner before other costs is $14.20
Step-by-step explanation:
To solve this, we write the following equation:
x + .11x + .20x = 18.60
This is because in addition to paying for the dinner (x), she also has to pay 11% of it and another 20% of it. Now we can combine like terms and solve.
1.31x = 18.60
x = 14.20