Answer:
there is a website called desmos and you can type all of that in and it can graph it, hope that helps(: and its free
Answer:
i dont know how your teacher teaches it but in the first question take away the y after the 25. number 2 the start equation would be 55=2x+25 then you would subtract 25 from each side to get 30=2x, the divide by to to get x=15 or she made 15 calls. number 3 is correct.
i hope this helps
D it's store d, it's the cheapest
She cuts off 21 cm. this leaves 63cm. cut into 6 equal pieces gives 10.5 cm pcs