Marie invested $800 in an account that pays 10% r =.10 simple interest per year. The equation to represent Marie’s investment is A = P + Prt, where A is the value of the investment, in dollars, P is the starting principle amount, in dollars, r is the interest written as a decimal, and t is the number of years invested. How many years(t) will it before the investment is worth $1200? Then Rewrite the equation y = mx + b and solve for m.

What is negative 3/9 times negative 2/8 ?

Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?