The CD Sophie uses to record her homework holds 600MB of data. Her homework uses 120MB of that space. What percent of the CD is used to hold her homework?
%
What is the ratio of used space to total space in simplest form?

Can any one me with the answers to these questions asap?

17 in long 1.3 ft wide and 8in high what is the volume

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