Collin bought 1 half a pound of chocolate. later, he went to the sweet shop and bought 6 ninths of a pound more chocolate. how much chocolate did he buy that day?

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify