All of the following are true of lead as an environmental hazard except?

a. paint in toys is an important potential source of lead exposure.

b. the higher the blood lead levels the more severe the biological effects due to lead poisoning.

c. paint in homes is no longer a source of lead exposure since lead is no longer allowed in paint.

d. exposure to lead may come from food, water and air.

Read the excerpt from the strange case of dr jekyll and mr. hyde what do dr. jekyll's thoughts reveal about him in this excerpt? [t]he inmates of my house were locked in the most rigorous hours of slumber, and i determined, flushed as i was with hope and triumph, to venture in my new shape as far as to my bedroom. i crossed the yard, wherein the constellations looked down upon me, i could have thought, with wonder, the first creature of that sort that their unsleeping vigilance had yet disclosed to he is jealous of those who can sleep through the night. he is revered for his scientific advances. he is interested in studying the movements of the stars he is proud and enthusiastic about his initial results.

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

Use the distributive property -7(-2x+u-2)