(Someone Help Me Please) Which expression can be used to find 5 times the sum of 4 and a number, n ?
1. 5(n+4)
2. 4(n+5)
3. 4+n×5
4. 5+n×4

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

Which best explains why this triangle is or is not a right triangle?

Adriana sold 50 shares of a company’s stock through a broker. the price per share on that day was $22.98. the broker charged her a 0.75% commission. what was adriana’s real return after deducting the broker’s commission? a. $8.62 b. $229.80 c. $1,140.38 d. $1,149.00