In 1980, colleges enrolled 12,086,800 students. in 2000, colleges enrolled 15.312,300 students. about how many more students in millions, enrolled in 2000 than in 1990?

a. 2.8 million
b. 3.0 million
c. 3.2 million
d. 4.5 million

Ineed to learn how to solve this problem

Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?