Giselle deposited $3500 into a savings account for which simple interest is calculated monthly. if her $3500 grew to $3514 after 1 month, what is the yearly interest rate on giselle's account? a. 0.48% b. 4% c. 0.4% d. 4.8%

D. 4.8 %.

Step-by-step explanation:

Since, the amount after getting simple interest on an amount is,

Where, P is the principal amount,

r is the rate of interest per period,

t is the number of periods,

Here, P = $ 3500,

t = 1 month,

A = $ 3514,

Let R be the annual rate of percentage,

Thus, the rate per month = R/12 %,

By substituting the value in the above formula,

Hence, the annual rate of interest on account is 4.8 %.

42

step-by-step explanation:

256/6=42

if gloria has "carry over" minutes, (that is, any minutes paid for but not used in a month can be applied to her payment for minutes in the next month,) her total usage for the three months is: total minutes = 320 + 243 + 489 = 1052 minutes number of 200 minute blocks = 1052/200 = 5 r52 (that is 5 with a remainder of 52) rounding up the number of 200 minute blocks gives her usage for the three months as 6 blocks. the cost for six blocks is 6 x $25 = $150 she also has 200 - 52 or 148 carry over minutes if gloria pays each month and unused minutes are lost, applying the rounding up procedure to each month gives: first month usage of 320 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 second month usage of 243 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 third month usage of 489 minutes rounds up to 3 blocks of 200 minutes for a payment of 3 x $25 = $75 total payments for the three months are $50 + $50 + $75 = $175 get the plan with carry over minutes!