You are making cakes for a bake sale. Each box of cake costs $1 to buy. You also need to buy a pan to bake the cakes in, and the pan costs $20. If you want to make a profit of at least $50, how many cakes do you need to sell at the bake sale? Write and solve an inequality

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

The angles in a triangle are represented by 5x, 8x, and 2x+9. what is the value of ? a.10.8 b.11.4 c.9.7 d.7.2