To make the conversion, the first thing you should know is that
1m = 3.28ft
Then, doing the conversion we have
(4.75ft / 3.28ft) * (1m) = 1.448170732m
nearest hundredth
1.45m
anwser
Bishaar's height is1.45m
Its B trust i took the test and got it right
bearing in mind that an explicit form is simply the sequence written as a function of some variables, so we simply simplify and add like-terms.

Factors of 15 - 1, 3, 5, 15
Factors of 18 - 1, 2, 3, 6, 9, 18
Factors of 30 - 1, 2, 3, 5, 6, 10, 15, 30
Your answer is D
Hope I helped you :-)