Given equations a and b as and , respectively, which expression will eliminate the variable x? a.) 5/2a + 2/5b b.) 5/2a − b c.) a +2/5 b d.) 5/2a − 2-5b e.) 25-10a + 6/10b

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

What percent of 18 is 24? and plz explain thx.