How do you use benchmark to estimate 2.81 + 3.72

1) Shannon takes a class to learn Japanese. The class costs $243 and lasts for 12 weeks. what is the cost, per week, of the Japanese class? show work. 2)

For the parallelogram, find the value of the variables. Show your work ok trying to figure out how to solve this problem 5x + 2 3y - 6 21 17

A scientist is measuring the temperature change and a chemical compound the temperature dropped 11 Fahrenheit per hour from the original temperature after four hours the temperature was 90°F find the compounds original temperature

Allison and Justin father donated $3 for every lap they swam in a swim athon Allison swam 21 laps and justin swam 15 laps how much money did their father donate

The function f is defined by f (x) = 3x^2-6. Find f (4z)

What is the prime factorization for 20

The numbers on the football field indicate 10 yards increments. you walk around the perimeter of the football field between the pylons. you walk a distance of 306 2/3. find the perimeter of one end zone

In order to have 1 million dollars in 40 years with an annual interest rate of 11.6%, I will have to invest $_ (round to the nearest 1000) a 12,000 b 13,000 c 14,000 d 15,000 A.) 12,000 B.) 13,000 C.) 14,000 D.) 15,000

Round 1.136 to the nearest hundredth

What is 5 million 4 thousand 3 hundred in standard form