8r+9r-11r+7r what is the answer I have to turn it in today!!

13r

Step-by-step explanation:

8+9=17-11=6+7=13

=13r

Step-by-step explanation:

All you have to do is sum and subtract where the sign applies

8r+9r-11r+7r

=17r-4r

=13r

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9

there is no question content here, but you for the free points! : d