When written in scientific notation, the number 4,500 will have a Choose...
as the exponent on the power of ten.

The number 4,500 is written in scientific notation as 4.5 x 103. The coefficient is 4.5. The coefficient must be a number greater than or equal to 1 and smaller than 10. The power of 10 or exponent in this example is 3.

Step-by-step explanation:

I believe the answer is 3. Sorry if incorrect.

total of apples - take away four

6-4 = 2

answer is 2 apples

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!