question 4 is A
question 5 is 43.6
question 5 showing work
how I would figure it out is 151-20 =131
then I would divide it by 3 for each day
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131÷3=43.6
Answer: y=16
explanation: y=128 when x=512, so to get the value of y, you need to divide 512/64=8. dividing 512(x) by 8 times gets 64, so you need to divide 8 on the other side(y). 128/8=16. hope this helped!
9)1= one 1/9 for each
so do that 5 more times and u get 6/9 for each friend
or 2/3
Is that the right equation?
It would be 0.2222 so it's your answer
