25i need simplify: 4(6 + 7) a. 13 b. 17 c. 24 d. 52 simplify: 6(5 + 4) a. 9 b. 34 c. 54 d. 69 simplify 6y + 5z + 8y - 3z a. 11y + 5z b. 14y + 2z c. 14y + 8z d. 16yz simplify: 6m + 7n + 5m - 3n a. 11m + 10n b. 15mn c. 11m + 4+n d. m + 10n

Naomi’s parents want to have 50,000, saved for her college education, if they invest 20000 today and earn 7% interest compound annually, about how long will it take them to save 50 thousand

Don't know how to find x given these segment lengths

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)