1) Cora measures her heart rate at 123 beats per minute. This is 5 beats per minute more than her resting heart rater. Write and solve an equation to find Cora's resting heart rate.
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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

Jane moves from a house with 71 square feet of closet space to an apartment with 45.44 square feet of closet space. what is the percentage decrease of jane’s closet space?

Which expression is equivalent to -5(3x - 6/7)