gary won the 100-m dash with a time of 9.87 seconds. his time was 0.93 seconds faster than brian’s. what was brian’s time?
a. 8.94 seconds
b. 10.61 seconds
c. 10.80 seconds
d. 11.23 seconds

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

How do i do this? i don’t understand