In the figure, lines a and b are parallel lines. Which of the following statements is true? Select all that apply. m∠1=m∠6
m∠2=m∠6
M∠1+m∠6=180∘
x = 90˚
x = 120˚

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

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

Yvaries inversely as x. y =12 when x=5. find y when x=4