Which equation represents a line that passes through (2, –1/2) and has a slope of 3? a. y – 2 = 3(x +1/2 ) b. y – 3 = 2(x + 1/2) c. y +1/2 = 3(x – 2) d. y +1/2 = 2(x – 3)

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1