In a science class there are 3 girls and 5 boys. the teacher asks a student to volunteer to come to the board. what is the probability that the student is a girl?

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 .

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.