Mercury-197 has a half-life of about 64 hours. After 288 hours, about how many milligrams of a 750 mg sample will remain?

A. 643 mg

B. 167 mg

C. 33 mg

D. 17 mg

Which is the correct estimation and justification for the problem shown below? V10 = ? about 5, because 2 x 5 = 10 about 5, because 5 + 5 = 10 about 4, because 4 x 4 = 16 about 3, because 3x3 = 9

A number is shown in expanded form. 7 * 1,000,000,000 + 5 x 10,000 + 8 x 1,000 + 8 x 100 + 4 * 10 + 6 * 1 What is the number in standard form?

Use synthetic division to find the quotient and remainder when 23? + 622 - 142 + 9 is divided by 2 + 3.

A researcher is working with a group of 13 participants, 6 of whom are female and 7 of whom are male. The researcher will select one participant for the group at random, and then she will select a second participant at random from the remaining

How are unlike fractions identified? A. Both fractions have the same value B. The denominators are the same number C. The denominators are different numbers D. The numerators and denominators are the same

Ben sat outside his school in cambridge and made a note of the colour of the first 100 cars that passed 27 of the cars were red. In britain there are around 35 million cars on the road.

If 1 6 of a gallon of milk is shared equally between 3 friends, how much mIf 1 6 of a gallon of milk is shared equally between 3 friends, how much milk will each friend getilk will each friend get

There are 276 plan in the flower garden what is 276 rounded to the nearest ten?

13 out of 60 people surveyed what angle in a pie chart would you use?

A toy company produces rubber balls that have a radius of 1.7 cm. A sphere has a radius of 1.7 centimeters. What is the volume of one rubber ball? Round to the nearest hundredth of a centimeter.