In a high school of 1250 students, 250 are freshmen and 150 students take spanish. if being a freshman and taking spanish are independent, what is the probability that a randomly selected spanish student is a freshman?
a) 0.024
b) 0.120
c) 0.150
d) 0.200

Find the value of the cosine for angle a

In a circle, a 45° sector has an area of 32π cm2. what is the radius of this circle? 32 cm 12 cm 16 cm 8 cm

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities