Mr. and Mrs. Smith plan to roof the cabin on 2 consecutive days. Assuming that the chance of rain is
independent of the day, what is the probability that it
will rain both days?
A. 0.04
B. 0.08
C. 0.16
D. 0.20
E. 0.40

When you answer this can you explain

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .