it takes ahmed 20 hours to rake the front lawn while his brother, jeff, can rake the lawn in 16 hours. how long will it take them to rake the lawn working together

Where was Pythagoras born

How many times greater is the populatiion of China than the population of France? Write the answer in standard notation. China's population: 1.3 x 10^9 France's population: 6.48 x 10^7

How are a common denominator and a common multiple alike and diferent

Four is a good number of people for ann to share her lasagna with because she does noy hsve to subdivie thr 100 servings into even smaller pieces to share equally what are some other numbers of people that ann could share with without having to cut

What is the difference between startup costs and operating costs?

Translate the sentence into an equation. Two less than the product of 5 and a number is equal to 6. Use the variable w for the unknown number.

You fly in a helicopter for 20 minutes that goes at a speed of 240 kilometers per hour how far did you go?

A central angle with a measure of 60 degrees is drawn in a circle with a circumference of 8π. What is the length of the intercepted arc in terms of pi?

Round 38.49 to the nearest whole number

A laboratory technician needs to make a 63-liter batch of a 20% acid solution How can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 10% to get the desired concentration?