PLEASE ANSWER ITS URGENT I WILL MARK AS BRAINLIEST! URGENT HELP Which statements give the constant of proportionality as y=kx?

What is the rescursive formula for this geometric sequence? 7, -14, 28, -56

Find the arc length parameter along the given curve from the point where tequals=0 by evaluating the integral s(t)equals=integral from 0 to t startabsolutevalue bold v left parenthesis tau right parenthesis endabsolutevalue d tau∫0tv(τ) dτ. then find the length of the indicated portion of the curve r(t)equals=1010cosine tcost iplus+1010sine tsint jplus+88t k, where 0less than or equals≤tless than or equals≤startfraction pi over 3 endfraction π 3.

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?