Asnail creeps up a plank 8 centimeters each day and slides back down 15 millimeters each night. write a numerical pattern showing the number of millimeters where the snail changes direction on which day will have the snail have moved 275 millimeters up from its starting point

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right