You have 400 mg of a radioisotope with a half-life of 5 minutes. How much will be left after 30 minutes?

Who wants brainliest and free answer this question correctly and i got you. if you're found to be at fault in you'll be required to attend a traffic collision avoidance course. a. one crash in the first year after getting your license b. a collision involving a police officer c. two crashes in two years d. three crashes in three years

Rewrite the following sentences in active voice. caution: one sentence (only one) is written in active voice. do not rewrite it just label it as being active. 1). the use of copernicus's theory was forbidden by religious leaders until 1757. 2). i am puzzled by your question. 3). the girl is frightened by horror movies; she only watches chick-flicks. 4). radium and polonium were discovered by marie curie. 5. most of the town was destroyed by a tornado. 6). these flowers were planted by the 4-h club. 7). the little boy showed his mother the bruises, cuts. and bumps on his shin. 8). pluto was discovered by clyde william tombaugh in 1930 in flagstaff, arizona. 9). the painting was purchased by mr. jones. 10). the song was performed many times by kate smith. 11). england was ruled by a woman nicknamed "bloody mary" from 1553-1558. 12). the law of universal gravitation was discovered by sir isaac newton.

Who wants brainliest and free 15 points? answer this correctly and i will do so : ) if you imagine your steering wheel as a clock, which of the following is the ideal way to position your hands on the steering wheel? a. one hand on 6 o'clock b. one hand on 12 o'clock c. 10 and 2 o'clock d. 9 and 3 o'clock