1.8y-9.3y-6.3y I don't get it

-13.8y

Step-by-step explanation:

Since these all have the same variable you don't need to worry that much. Let's take away the y to make it easier. Now you just subtract normally.

1.8 - 9.3

A trick that I use is that I subtract 9.3 - 1.8, and then add a negative sign. So that is -7.5

Then, subtract -7.5-6.3. You add these because they have the same symbol. So it is -13.8

We can't forget about the variable!! So it is -13.8y

Hope this helps!!

-Ketifa

(Can I get brainliest?)

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!

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