Which type of function best models the data in the set of ordered pairs? (-2, 16)(-1,8), (0,4),(1,2), (2,1)

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Julie multiplies 6.27 by 7 and claims the product is 438.9 .explain without multiplying how you know juliesanswer is not correct.find the correct answer