Determine which of these does not illustrate two quantities that combine to make 0.
a) jane collects 12 seashells and then loses 12.
b) sharon lost 8 pounds and then gained 10 pounds.
c) a business's profit if its income is equal to its expenses.
d) frank wins five dollars and pays back a $5 debt to a friend.

What are “like terms”? why can we only add like terms?

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

Lucy and donavan measured the length of the school garden. lucys measurement is 11.3m and donavans measurement is 113 cm. could both be correct? explain