Find the range of the data. scores: 81, 78, 74, 88, 73, 76, 93, 98, 78, 80 28 24 30 25

I need step by step to simplifying - 7.9+8.2-3.4+2.1

Charles invests $425 in a savings account that pays interest at an annual rate of 4 percent, compounded continuously. Approximately how much time will it take for his investment to double?

P = a + b + c; P = 28, a = 5, b = 11 (Perimeter of a triangle)

When adding two numbers with the same sign what sign do you use for the sum

Simplify: 25 (10x - 10y) - 34 (12x - 24y) A) - 5x + 14yB) - 5x - 14yC) 5x + 14yD) 5x - 14y

Factorise then following X^2-3x+2

Mr Murray's distance away (in meters) from his classroom after t seconds can be modeled by the following equation: M (t) = 3.5t + 2. After 3 seconds, how far is Mr Murray away from his classroom?

The upper arm length of females over 20 years old in a country is approximately Normal with mean 35.8 centimeters (cm) and standard deviation 2.5 cm. Use the 68-95-99.7 rule to answer the following questions. (Enter your answers to one decimal place.

The radius r (cm) of a circle is related to time t (seconds) by the equation r=0.4t + 1.5. (a) Calculate the initial value of the radius. (b) Find the rate of change of r.

Write in expanded form six hundred twenty six and fourteen thousandths