Rewrite sin (x - 7pi/4) in terms of sin and cos

Larry Mitchell invested part of his $34,000 advance at 2% annual simple interest and the rest at 3% annual interest. If his total yearly interest from both accounts was $190, find the amount invested at each rate.

What is the rate of change for Y=-4v-1

Helen draws a random circle She then measures the diameter and circumference

Theres 40 students and theres 5 less girls than 2 times of the boys

Which is the ratio of the number of months that begin with the letter M to the total number of months in a year?

2.6 as an improper fraction

The length of a rectangle is 7cm less than twice it's width. If the area is 30 sq. cm, find the dimensions

Heights of 10 year-olds, regardless of gender, closely follow a normal distribution with mean 55 inches and standard deviation 6 inches. Which of the following is true? Roughly 95% of 10 year-olds are between 37 and 73 inches tall.

Express the following as a decimal place75%

150% of what number is 105