Select all the statements that are true about the triangles

Which data set has a greater spread? why? set a: {38, 12, 23, 48, 55, 16, 18} set b: {44, 13, 24, 12, 56} has a greater spread because .

Dots sells a total of 279 t-shirts ($2) and shorts ($4). in april total sales were $670. how many t-shirts and shorts did dots sell?

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?