Three of the expressions will give the amount that remains after t years of a certain radioactive substance. Which expression is NOT equivalent to the others?

A) 270e^-0.0577t

B) 270 (12) t/12

C) 270 (0.944) t

D) 270 (13) t/9

The next number in the sequence - 5, - 2, 4, 13 is 25. Is this conjecture true or false? True False Not enough info is provided.

Grantsville Copper Mines employs 1,400 workers. The company must lay off 5% of its work force immediately and another 20% of the remaining work force by the end of the year. How many workers will be laid off? A.) 336 B.) 280 C.) 210 D.) 70

I just need clarification. If a rectangular prism has the dimensions of 10 by 4 by 6, The volume would be 240 in³ and the surface area would be 248 in² right?

Which is a better buy $2.90 for 5 bags of skittles or $4.56 for 8 bags of skittles

If a 25 in. by 32 in. window has a wooden frame 2 inches wide surrounding it, what is the total area of the window and frame? 1044 inches 1036 sq. inches 580 inches 1044 sq. inches

How does the volume of a sphere with radius 2cm compare to the volume of a sphere with radius 1cm

6 yards to 36 yards. Find the percent of change. Round to the nearest tenth of a percent if necessary.

Mark, evan, and cayla are playing a game. there are 3 blue marbles, 2 red, and 1 green marble. if mark pulls a blue marble he gets $1. if evan pulls a red marble, he gets a $2. if cayla pulls a green marble, she gets $3.

How do you reduce 12/30 by 1/2

Maria's age of 17 years less than Orlando's age. The sum of their ages is 33 find their ages.