Mark has a collection of 1,400 baseball cards. Of these baseball cards, 40% are dated before 1980, 25% are dated from 1980 to 2000, and the rest are dated after 2000. How many baseball cards are dated after 2000?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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?

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4