I need help with these three

> '9 A A If B is added to C : 4.1% + 3.5}. the result is a vector in the positive direction of the yaxis. with a magnitude equal to that of 2. What is the magnitude of 73.? Number I 5.78 Units Thisanswerhasnounits v What is the sum of the following four vectors in (a) unit-vector notation, and as (hi a magnitude and (c) an angle? Positive angles are counterclockwise from the positive direction of the x axis: negative angles are clockwise. = (2.00 m )i+ (3.00 m )3 = 4.00 m, at 65.0" ( 4.00 m )i (6.00 m if a, A '' 8 _, c B = 5.00 m. at -235 Oasis B is 6.0 km due east of oasis A. Starting from oasns A, a camel walks 24 km in a direction 15.0" south of east and then walks 32 km due north. if it is to then walk directly to B, (a) how far and (b) in what direction (relative to the positive x-axis within the range (-180", 180]) should it walk? J' ' \\\\