Which equation represents this sentence?

three less than the product of seven and the opposite of a number is four more than the number.

a. 3−7(−n)=n+4

b. 7(−n) – 3 = 4n

c. 7(−n)−3=n+4

d. 3–7(−n)=4n

Which data set has a greater spread? why? set a: {38, 12, 23, 48, 55, 16, 18} set b: {44, 13, 24, 12, 56} has a greater spread because .

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

Which of the following is the shape of a cross section of the figure shown below