Statement: if lines are skew, then they are not coplanar.

what is the contrapositive of the statement?

a)if lines are not skew, then they are coplanar.
b) if lines are skew, then they are coplanar.
c) if lines are not coplanar, then they are skew.
d) if lines are coplanar, then they are not skew

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

Tan198=asin164=? how to solve this? ?

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)