7th grade math help me pleaseee

Find the balance at the end of 4 years if 1000 is deposited at the rate of

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

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36