Sherry can clear 18 levels of Space Wars in 1/2 hour. How long does it take her to clear one level?

A spinner has an equal chance of landing on each of its five numbered regions. After spinning, it lands in region one or five. Is it mutually exclusive or not?

What value of D is a solution to this equation -63=-7d d=-7 or d=9

True or false two lines with the same y intercept are perpendicular

3y (4y+3) what is the correct answer

A tennis player wins a match 55% of the time when she serves first and 47% of the time when her opponent serves first. The player who serves first is determined by a coin toss before the match.

Find dy/dx by implicit differentiation. 4 + 7x = sin (xy^2)

Three friends equally share 1/2 of a pizza how much of the pizza does each friend get

0.197 as a fraction in simplest form

Bray earns $110.00 per week plus 15% commissoin on his sales. what will be his earning for the fortnight if the total sales amount $2050

Find the first six terms of the sequence in which f (1) = 4 and f (n) = f (n-1) + (n+6), n>1