Darla needs to purchase nine more stamps than envelops. each stamp cost $0.10, and each envelope costs $0.13 . if she pays $2.51, how many stamps and envelops does she buy.

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Predict which statements are true about the intervals of the continuous function. check all that apply