A wireless company offers two plans. In one plan theres is a monthly fee of 40$ and a charge of .25$ per minute in the other plan there is a monthly fee of 25$ and a charge of .40$ per minute for what number of minutes are the costs equal

Sera sells t-shirts at the beach. she believes the price of a t-shirt and the number of t-shirts sold are related. she has been experimenting with different prices for the t-shirts. she has collected a data set with five pairs of data; each consists of the price of a t-shirt and the number of shirts sold. the independent variable, which will go on the x-axis, is . the dependent variable, which will go on the y-axis, is the