(being timed )
which statement correctly explains how andre could find the solution to the following system of linear equations using elimination?
8s-9t=15
7s-2t=12
a. multiply the first equation by –7 and the second equation by 8, and then subtract.
b. multiply the first equation by -7 and the second equation by 8, and then add.
c. multiply the first equation by 2 and the second equation by 9, and then add.
d. multiply the first equation by –2 and the second equation by 9, and then subtract.

Atrucker had a load of grain containing 2 tons. she unloaded 1 ton and 1,200 pounds at the warehouse. how much grain does she still have left on the truck?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

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.