Sylvia bought a 6 month $1900 certifcate of deposit. at the end of 6 months she received a $209 a simple interest what rate of interest did the certifcate pay show all of your work

Will mark brainliest if you answer ! the taco shop sold 198 lunches friday. this number is 3 more than 3 times the number they sold monday. let n represent the number of lunches sold monday. which equation shows an equality between two different ways of expressing the number of lunches sold on friday? a. n – 3 = 198 b. 3n – 3 = 198 c. 3n + 3 = 198 d. n + 3 = 198

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2