Brittany earned $835 babysitting this summer. She put her money into a savings account which earned 7.8% interest annually. If she leaves the money in the savings account for 3 months, how much interest will she earn?

$16.28

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 7.8%/100 = 0.078 per year,

putting time into years for simplicity,

3 months ÷ 12 months/year = 0.25 years,

then, solving our equation

I = 835 × 0.078 × 0.25 = 16.2825

I = $ 16.28

The simple interest accumulated

on a principal of $ 835.00

at a rate of 7.8% per year

for 0.25 years (3 months) is $ 16.28.

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

answer is c

step-by-step explanation:

81/12=324/x

x=48