Nancy had $2,848.52 in a savings account with simple interest. she had opened the account with $2,006 exactly 3 years earlier. what was the interest rate?

  14%

Step-by-step explanation:

A = P(1 +rt) . . . . . . . . . . . . . . . . . . formula for the balance for simple interest

2848.52 = 2006(1 +3r) . . . . . . . filling in the given numbers

1.42 = 1 +3r . . . . . . . . . . . . . . . . . .divide by 2006

0.42 = 3r . . . . . . . . . . subtract 1

0.14 = r = 14%

Nancy's account paid interest at 14% per year.

o= 4(i) +3

step-by-step explanation:

o is your output value and i is your input value. so, for example, if we stuck 7 in as our input, we would first multiply by 4 ( pemdas ), which equals 28. then we would add 3 to 28, for a total output of 31. this may not be a graph, but, it is a way to solve your formula..

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.