Someone knows how to fill this ?

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

Given the equation y − 4 = three fourths(x + 8) in point-slope form, identify the equation of the same line in standard form. −three fourthsx + y = 10 3x − 4y = −40 y = three fourthsx + 12 y = three fourthsx + 10

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m