A grain of sand has a mass of 2.6 * 10-3 gram. A grain of salt has a mass of 6.5 * 10-2 gram. How many times greater is the mass of the grain of salt than the mass of the grain of sand? A

2.5

B

3.9

C

25

D

39

Ali has 3 different coins 10p, 50p and £1. He choose one, two or three of the coins. Write down all the amounts of money he could make.

A single die rolled one time find the probability of rolling an even number or a number less than 5

The diameter of Earth is 1.27 * 10 4 km. The diameter of Mars is 6.79 * 10 3 km. How many times greater is Earth's diameter compared than Mars's diameter? 5.52 * 10 4 5.35 1.9 0.18

What is 6.9 as a fraction or a mixed number

Find The Unit rate Three medium apples have about 285 calories

A gardener uses a tray of 6 conical pots to plant seeds. each conical pot has a radius of 3 centimeters and a depth of 8 centimeters. about how many cubic centimeters of soil are needed to plant the full tray? round to the nearest cubic centimeter.

The price of 2 bananas are $1.00. How much would 7 bananas cost?

students' scores on an anthropology test have a mean of 31 with a standard deviation of 3.5 if rochelle scores 20 on her test, how many standard deviations away from the mean is her score

A gardener is planting two types of trees: Type A is 8 feet tall and grows at a rate of 6 inches per year. Type B is 10 feet tall and grows at a rate of 4 inches per year.

You have a $500 public relations budget for the current year. You would like to generate publicity by publishing several ads in the local township newspaper about your store's sponsorship of community activities.