Azoo train ride costs $4 per adult and $1 per child. on a certain day, the total number of adults (a) and children (c) who took the ride was 40, and the total money collected was $76. what was the number of children and the number of adults who took the train ride that day, and which pair of equations can be solved to find the numbers?

a) 12 children and 28 adults
equation 1: a + c = 40
equation 2: 4a – c = 76
b) 12 children and 28 adults
equation 1: a + c = 40
equation 2: 4a + c = 76
c)28 children and 12 adults
equation 1: a + c = 40
equation 2: 4a + c = 76
d)28 children and 12 adults
equation 1: a + c = 40
equation 2: 4a – c = 76

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.