the weight of earth is about 66 metric ton what is the standard form of 6,600,000,000,000,000,000,000, metric tone

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11