Please answer and show your work! I really need help with both problems. Thank you!!

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how