The answer is B: 6 cm. You can use guess-and-check method, and plug the possible different answers into the equation x(x+6)=72, x stands for the width.
Answer is 4 books per minute. 240 (books) divided by 60 (minutes in one hour) equals 4
The answer is 4 and 9, this is because 2*2=4 and 3*3=9, so their square roots are 2 and 3
C represents carrots. t represents time in hours.
c= 125t
To find this equation, I found the unit rate, or how many carrots were chooped per hour. I then plugged it into slope intercept form (y=mx+b) where the y intercept was 0 because she can chop 0 carrots in 0 hours.