Which relation is a function?

i. {(2, 4), (–1, 7), (3, 0), (5, 4)}
ii. {(–3, 6), (–3, 6), (8, 6), (8, 10)}
iii. {(4, 1), (–2, 5), (–8, 3), (4, 6)}

a. ii only

b. i only

c. i and ii

d. ii and iii

Amovie streaming service charges it’s customers $15 a month. martina has $98 saved up. will she have any money left over if she pays for the maximum amount of months she can afford? explain.

Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants.assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1

Sara is flying a kite at the park. the angle of elevation from sara to kite in the sky is 53° and the length of the string is 32 feet. of sara is 5 feet tall how far off the ground is the kite