Atree with a height of 4m casts a shadow 15 m long on the ground. how high is another tree that casts a shadow which is 20 m long? use the words similar, corresponding, or proportion to explain your work.

#12 find the value of x. #13 find the value of the variable.

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2