A 42 gram sample of a substance that's used to treat thyroid disorders has a k-value of 0.124. Find the substance's half-life, in days. Round your answer to the nearest tenth.

String a is 3 3/5 meters long string b is 2 1/4 meters long. What's the total length of both strings?

Kelly rides her bicycle from city a to city b how long is her ride? A 70 miles B 24 miles

Find the probability. Rolling a number greater than 4 on a number cube.

A person can purchase a particular model of a new car with a choice of ten colors, with or without automatic transmission, with or without four-wheel drive, with or without air conditioning, and with two, three, or four radio-CD speakers.

You purchased 100 shares of stock valued at $55 per share. The stock value increases to $85 per share. What was the rate of increase?

You work at a bridal shop. You need to find out how much satin you will need to make four bridesmaids' dresses and two flower girls' dresses. Each bridesmaid's dress requires 4.5 yards of satin, and each flower girls dresses requires 3.

A necklace is valued at £1200 It's value is expected to increase by 4.5% per year over the next 3 years. Calculate the expected value of the necklace after this time

Natalie drives 2.4 miles round trip each time she goes to the grocery store. Which expression can Natalie use to determine the number of miles she drives in 8 round trips to the grocery store?

Josiah conducts an experiment that has 4 possible outcomes. Sally conducts an experiment that has 10 possible outcomes. The students conduct 50 trials each. Which statement best compares the two experiments?

Can - 20 and 20 be expressed with a less than or equal to sign? Example: - 20 _< 20.