A is very general in nature, while a specifies what we want to study more specifically, suggesting the key concepts we need to know.

From which college can you earn an associate's degree a. a four-year college b. a community college c. a vocational college d. a public university

If point e(5, h) is on the line that contains a(0, 1) and b(−2, −1), what is the value of h? a)-1 b)0 c) 1 d) 6 !

Abag contains even and odd numbered balls in the ratio of 3: 7, respectively. for each of the following, what is the probability of drawing an even-numbered ball? the total number of balls is 240 and 30 of the odd-numbered balls are renumbered by multiplying the numbers by 4.