Help plz :)no links plz

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.