A group of students take a test. The group consists of 12 boys and 8 girls.

The mean mark for the boys is 18

The mean mark for the girls is 16.5

Calculate the mean mark for the whole group.

Express as a fraction or a mixed number. 0.15%

What is 6/7 rounded to the nearest 1/2

One lap around a jogging 1/4 of a mile. It takes Nekoda 1/6 hour to ride one lap. What is Nekoda's unit rate, in mile around the track?

Janelle earns $950 a week. Carter earns $50,320 a year. Each works 52 weeks a year. What is the difference between the amounts Janelle and Carter earn in 30 years? Explain.

Two complementary angles in the ratio 5:7. What is the measure of the smaller angle?

If AD/DB = AE/EC, then line segment blank is parallel to line segment blank

elise reads at a constant rate. she can read 6 pages in 14 minutes. what is the number of pages, y, elise can read in x minutes? (write an equation)

A Dog Sled Driver Added More Gear To The Sled Doubling Its Weight This Felt Too Heavy So The Driver Removed 20 Pounds To Reach The Final Weight Of 180 Pounds Write And Solve An Equation To Find The Sleds Original Weight Describe How You Could Find

How do you write 120% as a decimal and as a fraction

Find the derivative of the function. y = √ (11x + √ (11x + (√11x)))