For a school picnic, Mrs Smith divided her students into 5 groups. In each group, there were 18 boys and 8 fewer girls than boys. How many students went for the school picnic ?​

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