Emily buys a pack of 12 bottles of water the pack cost £5.64. Emily sells all 12 bottles for 50p each. Work out Emily's percentage profit. Give your awnser correct to 1 decimal place.

A radio active isotope decays according to the exponential decay equation where t is in days. For the half life: The half life is the solution (t) of the equation : a2=ae-9.753t

One printing press has a fixed daily cost of $50 and a variable cost of $1.50 for every 30 pages printed. A second printing press has a fixed daily cost of $10 and a variable cost of $2 for every 30 pages produced.

Jai found the ratio of clean to contaminated soil samples was 8:3. Jai found 240 clean samples. How many fewer soil samples were contaminated than clean?

What is the area of a circle with the diameter of 8

What is the value of 6•7-3^2•9+4

An egg is dropped from a height of 90 ft. If acceleration die to gravity is - 16ft/s^2 and initial velocity is 0ft/s, approximately how long will it take for the egg to reach the ground?

Terms that have the same variable with the same exponents are called?

Two fifth grade classes are attending an amusement park as a field trip. Their teachers purchased the tickets for the class and the parent chaperones. Mrs. Moreno purchased 21 child tickets and 15 adult tickets, which cost a total of $945. Mr.

Solve. x + 5 = 10 (A) x = 2 (B) x = 3 (C) x = 4 (D) x = 5

How do government compare and contrast ancient Rome and China?