Solve the equation for r if |r| - 12 = 23

Amy and her partners measured the pH of water samples from different ponds in her neighborhood. This data follows a normal distribution. What is the probability that the pH level of a specific pond was 2 or more standard deviations above the mean?

Decrease £16870 by 3% Give your answer rounded to 2 DP.

Factor 12x-54 using gcf

At a rate of 0.35 kilometers per minute how many kilometers will the cyclist travel in 15 minutes?

Is i have 5 red marbles, 2 green and 3 blue, what is the probability of drawing two blue marbles in a row?

Area of a rectangle 12 by 10

If OR is the angle bisector of POQ, and POQ = 94°, what is the measure of POR?

The mean temperature for the first 4 days in January was 7°C. The mean temperature for the first 5 days in January was 9°C. What was the temperature on the 5th day?

The taxi fare in gotham city is $2.40 for the first additional mileage charged at the rate $0.20 for each additional 0.1 mile. you plan to give the driver a $2 tip. how many miles can you ride for $10?

What is the expression for add g to 4, then subtract 5 from the result?