Can someone walk me through this? ?
solve by the linear combination method (with or without multiplication).
8x + 2y = 4
–4x + 3y = –10
a.
(1, 3)
b.
(2, 3)
c.
(1, 2)
d.
(1, –2)

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

Find the solution of this system of equation -7x+y=-20 9x-3y=36

You’re giving a cube with a length of 2.5 cm and a width of 2.5 cm and a high of 2.5 cm you place it on a scale and it is 295 g calculate the density