What is the value of the unknown number in the verbal description? 5 times the sum of 12 and a number is 80 a. 4 b. 1 c. 16 d. 28

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?