In which situation do the quantities combine to make 0?

a a football team gained 4 yards on one play and lost 2 yards on the next play.

b the temperature at 10 p. m. was 6°c. over the next 3 hours, the temperature decreased by 2°c each hour.

c marci spends $8 to make a necklace and earns $8 from each bracelet sold. on saturday, she made $10.

Arecipe calls for 3 ounces of flour for every 2 ounces of sugar. find the constant of proportionality.

Woodland bicycles makes two models of off-road bicycles: the explorer, which sells for $250, and the grande expedition, which sells for $350. both models use the same frame, but the painting and assembly time required for the explorer is 2 hours, while the time is 3 hours for the grande expedition. there are 375 frames and 450 hours of labor available for production. how many of each model should be produced to maximize revenue? a. 200 explorers 50 grande expeditions c. 225 explorers 0 grande expeditions b. 150 explorers 10 grande expeditions d. 325 explorers 50 grande expeditions

After surveying students in her homeroom, katie decided to use a number cube to predict the probability that a randomly chosen student in her school planned to stay after school today for extracurricular activities. in katie’s simulation, a roll of 1 represents staying after school, while rolls of 2, 3, 4, 5, or 6 represent leaving school at the end of classes. according to katie’s model, what is the probability that three randomly chosen students will all stay after school for extracurricular activities today?