Simplify the expression 2√ 20 − 3√ 7 − 2√ 5 + 4√ 63 . a. 2√ 20 − 4√ 7 − 2√ 5 b. 2√ 20 − 3√ 7 − 2√ 5 + 4√ 63 c. 2√ 20 − 3√ 7 + 4√ 63 d. 2√ 5 + 9√ 7

If a(0,0,0) and b(2,2,2) are points in coordinate space, how many paths are there from a to b that move from one lattice point to another in the positive x-,y- or z- direction?

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

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.