At the beginning of a population study, a city had 360,000 people. Each year since, the population has grown by 4.3%.
Lett be the number of years since start of the study. Let y be the city's population.
Write an exponential function showing the relationship between y and t.

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?