The mass of an electron is approximately 9.1 x 10^-31 kilograms. The mass of a proton is approximately 1.7 x 10^-27 kilograms.

Approximately how many times greater is the mass of a proton than the mass of a electron?

A. 5,500
B. 1,900
C. 19,000
D. 55,000

On a piece of paper graph f(x)=5•(0.4)^x

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

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?