Which solid is a triangular pyramid?

Write a numerical expression that satisfies all of the following conditions. 1.)the only number used in the expression is 5 2.)at least one exponent other than 1 is used 3.)when the expression is evaluated, the answer is greater than 40 and less than 50

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Which statement justifies why angle ebc measures 90?