If angle SMR is equal to 70 degree find the measure of PST and STQ ​

How do you find principle and simple interest

Write the equation in logarithmic form m^x=n

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?