What is the contour interval for enchanted rock

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Kate is arranging new furniture in her rectangular sitting room. she has mapped the arrangement on a coordinate pane. a,b and c represent the sofas, v1 and v2 are decorative vases and aq the aquarium. find the distance between v1 and the aquarium. any body you