In photo is the question

What scale factor was applied to the first rectangle to get the resulting image interior answer as a decimal in the box

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish