1.what is the simplified form of the following expression? 7m^2+6.5n-4n+2.5m^2-n a. 9.5m^2+1.5n b. 4.5m^2+1.5n c. 1.5m^2-4.2n d. 9.5m^2-1.5n 2.simplify the following expression 1/4(16-12x) a.4+3x b.4-3x c.4+3 d.4-3 3.what is the sum? 7/3+(-3/8) a.65/24 b.47/24 c.-4/5 d.-5/4

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

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93