Numbers from 1 to 80 are written on separate cards and put in a box one of the cards is randomly selected. What is the probability that the card selected is either and even number in all the cards present or an odd number under 10

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?