In numberwang, each player chooses an ordered sequence of 5 digits. a valid sequence must have the property that it is non-increasing when read from left to right. for example, 99621 is a valid sequence, but 43212 is not. how many choices of valid sequences are there?

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.