Which steps could be used to solve this story problem?

billy had 20 rubber balls and 12 plastic balls. he shared the balls equally among 4 friends.

how many more rubber balls did each friend get than plastic balls?

a.
subtract 12 from 16. then multiply the difference by 4.

b.
divide 20 by 4. divide 12 by 4. then find the difference between the two quotients.

c.
multiply 20 by 4. multiply 12 by 4. then find the difference between the two products.

d.
subtract 4 from 20. subtract 4 from 12. then add the differences together.

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Can someone me with these two circle theorem questions asap?