Find the measure of angle x in the figure below:

a. 50°
b. 75°
c. 115°
d. 130°

find the area of a triangle with a base length of 4 units and a height of 5 units.

a. 8 units
b. 9 units
c. 10 units
d. 20 units

i really appreciate all the you can give me. if you can pls try and explain (at least the last one if you are able.) also, the image goes with the first question.

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.