Please help. You bought 4 notebooks for $0.89 each and some reams of paper at a cost of $1.69 each. If you spent a total of $13.70. how many reams of paper did you purchase?

6 reams

4 x .89= $3.56

$13.70 - $3.56 = $10.14

$10.14 / $1.69 = 6

Step-by-step explanation:

6

Step-by-step explanation

So you have bought 4 note books each for $0.89 each. Right off the bat we  have to multiply the 0.89c by the number of books we bought which is 4.

$0.89 x 4 = $3.56

And contuniung in it says that you bought some reams of paper and a ream of paper costs $1.69. And they want to know how much you bought if you spent $13.70 in totall. So all we have to do now is sumbtract the amount of money spent on the 4 notebooks to see how much money is left.

$13.56 -$3.56 = $10.14

Now to find the final answer we have to divide the $10.14 by $1.69 no find out how much reams of paper we bough.

$10.14 ÷ $1.69 = 6

There for the total amount of reams of papar we bought is 6.

answer: 414,377,008

step-by-step explanation:

just multiply it

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -