Sin A + cos B = 1 ,A = 30 and B is an acute angle then find the value of B

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds.then use the distributive property and mental math to evaluate the expression.

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )