The number of people infected by a virus doubles every nine days. By how much will the number of infected people grow in 45 days

What is 4.5 x 10^6 in standard notation

Melvin is making a large poster for the school carnival. he skeched his design on a 9 inch by 12 inch sheet of paper then he expanded his design by a scale of 3 what are the dimensions of the poster. What is the area of the poster

Each of the three oldest children sleeps in a twin bed. They all need bed sheets. A brand of sheets is on sale for "Buy one get one at 50% off". If each sheet costs $18.

The cost c in £ of a monthly phone contract is made up of the fixed line rental l in £ and the price p in £ of the calls made. Enter a formula for the cost and enter the cost if the line rental is £35 and the price of calls made is £12

How many solutions does an equation have when the variable adds out and the final sentence is true? A. 0 B. 1 C. 2 D. infinite

Solve for x. x - 2 2 + 1 = 4x - 5 3 A) x = 3 B) x = 1 C) x = - 3 D) x = - 2

Is 8.47 L greater than 10

What goes into 125 and 560 evenly

The ratio of a model car to the size of an actual car is 1:40. If the model is 4.5 inches long, what is the length of the full size car in inches and in feet?

Spencer is asked to factor the polynomial 256x^4y^2-y^2 completely over the integers. His work is shown below.