HELP!! WILL MARK BRAINLIEST - BINOMIAL EXPANSION: The first two terms, in ascending powers of x, in the expansion of (1+x)(2-x/4)^n are p+qx². find the values of n, p, and q​

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.