C
the sum to infinity of a geometric series =
where a is the first term and r the common ratio
= = 81 × 3 = 243
Answer:
14
Step-by-step explanation:
20-6=14
x=14
$84
Simple Interest = Interest rate*Principle*number of years
= (3÷100)*$700*4
=$84
2.87
To find the sales tax
Take the amount of the purchase and multiply by the tax rate
35.88 * 8%
35.88 * .08
2.8704
Rounding to the nearest cent