Which term of arithmetic sequence is -18,given that a1=7 and a2=2 with solution

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer