How do i solve this 4 (2x-15)+40=6 (x+5)

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Consider the following equation. 1/2x^3+x-7=-3sqrtx-1 approximate the solution to the equation using three iterations of successive approximation. use the graph below as a starting point. a. b. c. d.

What ia the sum if the first 7 terms of the geometric series