Leroy invested $400 at a certain interest rate and $1200 ata a rate 3% higher. He earned $84 less in annual interest on the smaller investment. If the return on both investments totaled $132, find each rate.

Apolice office claims that the proportion of people wearing seat belts is less than 65%. to test this claim, a random sample of 200 drivers is taken and its determined that 126 people are wearing seat belts. the following is the setup for this hypothesis test: h0: p=0.65 ha: p< 0.65 find the p-value for this hypothesis test for a proportion and round your answer to 3 decimal places.