Mark estimates that he spends 3/8 of his money on lunches. what percent of his money does he spend on lunches?

a.2.6%
b.3.75%
c.26%
d.37.5%

sue chose b for her answer. how did she get that answer?

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Which statement best explains why ben uses the width hi to create the arc at j from point k