At the campus coffee cart, a medium coffee costs $3.45. MaryAnne brings $4.00 with her when she buys a cup of coffee and leaves the change as a tip. What percent tip does she leave? (Round your answer to one decimal place.)

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.

this excerpt is taken from the book “we shall not be moved : the women’s factory strike of 1909 “ and is written by joan dash. it is the story of the great strike when almost 30thousand women working in factories in america formed a union to fight unsafe working conditions, long working hours and miserable wages.

question: which best states the author’s purpose for including this information in the text?

answer: to challenge the reader’s ideas about a historical event

let me know if this is right lol.

step-by-step explanation:

in order to solve by completing the square, what number should be added to both sides of the equation?

88

how many of the solutions to the equation are positive?

0

what is the approximate value of the greatest solution to the equation, rounded to the nearest hundredth

3.03