One sixth of the rocks mass was quartz. If the mass of the rock was 144 grams, what was the mass of the quartz in the rock?

1. How can you determine whether two events are independent or dependent?

A roulette wheel has 38 slots, numbered 0, 00, and 1 to 36. the slots 0 and 00 are colored green, 18 of the others are red, and 18 are black.

A washer and dryer cost $810 combined. The washer costs $40 less than the dryer. What is the cost of the dryer?

Red and grey bricks were used to build a decorative wall. The number of red bricks/number of grey bricks was 5/2 There were 140 bricks used in all. How many red bricks were used?

121 is increased to 321 percent of change

Elmer has a collection of 300 fossils. of these, 21% are fossilized snail shells. how many fossilized snail shells does Elmer have?

Whoever answers first will get brailiest! What is the area of a rectangle with side lengths of 3/8 meter and 4/6 meter? Enter your answer as a fraction in simplest form by filling in the boxes. [_] / [_] m²

How many different three-digit numbers between 100 and 1,000 have 5 as the tens digit?

Problem Page Kaitlin is saving money to buy a game. The game costs $20, and so far she has saved four-fifths of this cost. How much money has Kaitlin saved? write as an inequality 99 pts

Comman factor of 25 60 75