What is the value of x? angle 1 and angle 2 are complementary.

angle 1 = x
angle 2 = (2x + 30)

what is the value of x?

look above as well. tell me both values

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

What is the slope of the line that contains the points (-2,1) and (0,-3)