This year 90 students signed up for the group talent contest if all the groups had the same number of students how many groups could be formed

A. 4 or 5
B 5 or 6
C 4 or 6
D 4 or 9

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.