The partially filled contingency table gives the frequencies of the data on age (in years) and sex from the residents of a retirement home.

60-69
70-79
over 79
total
male
15
4
5

female
5
7
4

total

what is the relative frequency for persons in the age group 60-69 ?
a.2/3

b.1/4

c.1/2

d.1/3

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.

Find the distance between (7,-6) and (-3,-9)

Given sin∅ = 1/3 and 0 < ∅ < π/2 ; find tan2∅ a. (4√2)/9 b. 9/7 c. (4√2)/7 d.7/9