What is the value of $x$x in the proportion?

$\frac{5}{7}=\frac{x}{28}$57=x28

$\frac{5}{4}$54

$5$5

$26$26

$20$20

Marie sprints $96$96 metres in $16$16 seconds on the track.

Derek burns $162$162 calories by jogging $2$2 kilometres.

The next week, he is planning to run $6$6 kilometres on Monday and $11$11 kilometres on Thursday. How many calories will Derek burn running next week?

Which value of $x$x makes this equation true?

$x^2-3=61$x2−3=61