Aprincipal of $950 is invested in an account at 7 percent simple interest per year. what is the amount of the principal after 5 years? be careful! what term of the simple interest sequence tells you the principal after 1 year? what term of the simple interest sequence tells you the principal after 5 years?

Convert the cartesian equation (x 2 + y 2)2 = 4(x 2 - y 2) to a polar equation. choices: r4 = -4r2 r2 = 4cos2θ r2 = 4sin2θ

Anyone know? will mark brainliest if correct

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables