The ratio of students who wear glasses to the total class is 2: 5.
a. what is the ratio of students who wear glasses to those who doni?
b. if there are 15 students who don't wear glasses, how many students are in the class?
c. ir 5 of the students who didn't wear glasses now do, what is the ratio of students who
wear glasses to those who don't?

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

The four students in the table below each recorded the time and distance traveled while exercising. exercising distance (miles) time (minutes) gia 2 30 harris 5 50 ian 3 40 jackson 4 80 which list ranks the students from fastest walker to slowest walker? jackson, gia, ian, harris harris, jackson, ian, gia harris, ian, gia, jackson jackson, harris, ian, gia

|z| > (1/2) {-1/2, 1/2} {z|(-1/2) < z < (1/2)} {z|z < (-1/2) ∪ z > (1/2)}