Find the percent of change and classify as a percent increase or decrease. Round to the nearest tenth of a percent when necessary.

Penelope spent $120 on groceries last week. This week she spent $105.

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =