A piece of glass with an initial temperature of 99°C is cooled at a rate of 3.5°C per minute. Concurrently, a piece of copper with an initial temperature of 0°C is heated at 2.5°C per
minute. Which of the following systems of equations can be used to solve for the temperature,
T, in degrees Celsius, and the time, m, in minutes, when the glass and copper reach the same
temperatures?

What causes the famous san francisco fog to move inland and back out to sea?

Vera is on her school's track and field team. in a practice long-jump competition against her teammates, she gets 5 points for landing over the farther line. she gets a total of 7 jumps and lands x times over the farther line and the rest of the times over the closer line. which of the following functions represents vera's total score? a. f(x)=10x b. f(x)=5x+35 c. f(x)=10x+5 d. f(x)=70-5x

Ben is interested in using a source that provides original research, current and developing trends and experts within specific fields. which source should he use?