Twice Beth's daily pay is the same as her daily pay increased by $45. Find Beth's daily pay

Can you me find the slope! (30 points)

Here is another math questions. i will keep asking different questions. 4^2x=6

Jane is cooking beans and rice for dinner tonight. she has 4 cans of black beans, 6 cans of red beans, and 3 cans of garbanzo beans in her cupboard. if she grabs a can of beans without looking at the label, what is the probability of her making black beans and rice for dinner?