Brainliest if correct and extra points
which pair does not represent the probabilities of complementary events?
a. 4/7 and 3/7
b. 16% and 84%
c. 0.25 and 0.50

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

When y’all answer can y’all explain too !

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.