Which interval contains a local minimum for the graphed function?
{-4,-2.5}
{-2,-1}
{1,2}
{2.5,4}

Ithink not so sure but i tried it out and came out to be b

Yea they are simplyfiy the ratios

7days is 168 hours in decimal form it is just 168 there is no decimal form for this because it is like 168.0 and there is no number you are dividing it by for it to be a decimal.hope this