15 of the students in a english class passed a english test. if these students are 75% of all the students in the class, how many students are in this english class? round your answer to the nearest whole number if necessary

Part 1)

Part 2)

Part 3)

Step-by-step explanation:

Part 1) Using proportion

Part 2) Using proportion

Part 3) Using proportion

1 is c

2 is a

3 is a

step-by-step explanation:

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.