Find 1/2 of 5 less than 10

Hey! i know how to compare scientific notation, but i don't understand what they are asking me to do here. In 2010, the number of participants in a checkers tournament was 2.6 * 104 people.

Concrete building blocks weigh 28 pounds each. Using b for the number of concrete blocks and w for the weight, write two equations that relate to the two variables. one equation should begin with w = and the other should begin with b=.

Which quadratic equation defines the function that has zeros at - 8 and 6? A. x^2 + 2x - 48 = 0 B. x^2 - 2x - 48 = 0 C. x^2 + 2x + 48 = 0 D. x^2 - 2x + 48 = 0

An 8.5 centimeter green bean pod contains peas that average 0.45 centimeter in diameter. How many peas are in the pod?

What number of students describe the first quartile? 20, 18, 21, 18, 22, 24, 18, 23, 23, 24,

What two numbers multiplied to get 80 and add to get 40

The data from the previous table is plotted to the right. The distance the boat traveled is on the x-axis, and the vertical position of the barnacle is on the y-axis. The graph follows the pattern. This is the pattern for a function.

Venus is about 10^8 kilometers from the Sun. Saturn is about 10^9 kilometers from the Sun. About how many times farther from the Sun is Saturn than Venus? 10^72 10^17 10 1

X+6 is less than or equal to 12+2x

Find the rate and unit rate of 420 miles in 7 hours