Which numerical expressions represents the following calculations? Add 12.60 to the quotient of 1.50 and 2.

For what value of x does 4x = (1/8) x + 5?

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

Abari owns 100 shares of stock a and 45 shares of stock b. for the past month, his stocks have been fluctuating inversely. stock a decreased by m cents per share and stock b increased by n cents per share. which equation can be used to find the total change in value of jabari's shares per month?