This venn diagram represents the science subjects studied by students what is the probability that a student, chosen at random, studies physics and chemistry or both ?

Which representation has a constant of variation of -2.5

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.