The ratio of red counters to blue counters is 9:11. There are y blue counters. Express the number of red counters in terms of y.
(This is algebra btw-)

x=17

step-by-step explanation:

solve 3x-24=x+10

then that makes it 2x=34 because you subtract an x from both sides to get rid of the one on the right, and then you add 24 to both sides to get rid of the 24 on the left

divide by both sides by 2 to get your answer so that you can get your answer

what shape is

i have not got your picture clearly so see it once again