After pouring an acid into a beaker containing water, you observe that the container begins to feel hot. which type of chemical reaction are you observing?

a. triple displacement

b. endothermic

c. double displacement

d. exothermic

e. single displacement

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?

Triangles abc and dfg are given. find the lengths of all other sides of these triangles if: b ∠a≅∠d, ab·dg=ac·df, ac=7 cm, bc=15 cm, fg=20 cm, and df-ab=3 cm.