if E-F is parallel to CA , then B-E = 4,then B-F = 10,also E-C= X-1, and A-F = 2x + 1 Find the value of x.

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?