7.) There are 120 students in 7A and and there are 115 students in 7B]

7A has 66 boys

7B has 69 boys

Which core has a higher percentage of girls?

A new extended-life light bulb has an average service life of 750 hours, with a standard deviation of 50 hours.

Factorise each of the following algebraic expressions completely, (a) 2k-6k2 + 4k3 (b) 2ax - 4ay + 3bx - 6by

Sanje says that 8 cm is the same length as 8 inches because 8 = 8. Is Sanje correct?

Convert 258 degrees into radians

There are 3 students to 1 adult on a field trip. You need to find the number of adults needed for 24 students. What would the second ratio of the proportion look like if the first proportion is as follows

From the following information, determine operating cost per mile. Choose the right answer. Cost of car = $5,000.00 Market value after 1 year = $3,800 Cost of gas and oil = $750.00 Repairs/Maintenance = $250.00 Insurance = $300.

If you earn 15.50 per hour at market basket, how much do you earn in 5 1/2

The sum of two numbers is 21. The larger number is 6 less than twice the smaller number. Find the two numbers

The vertex of the equation of a parabola is y=4 (x-2) ^2-1. what is the standard form of the equation

You're driving into Canada and trying to decide whether to fill your gas tank before or after crossing the border. Gas in the United States costs $2.58/gallon, in Canada it's $1.29/L, and the Canadian dollar is worth 79¢ in U. S. currency.