3d - e = 7
d + e = 5

use the linear combination method to solve

a. there are infinitely many solutions
b. there is no solution
c. the solution is (2,-1)
d. the solution is (3,2)

Determine the next term in the sequence. then write the next 2 terms 4,16,28, what number do you do to get that?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'