Consider a sample with data values of 18,19,10,20,15, and 13

Asap will give brainiest to first person to answer what is the measure of angle b in the triangle? enter your answer in the box. m∠b=

The volume of a spherical hot air balloon v(r) = 4 3 ? r3 changes as its radius changes. the radius is a function of time given by r(t) = 3t. find the instantaneous rate of change of the volume with respect to t at t = 2.

Which inequality represents all the values of x for which the quotient below is defined? √x+1 ÷ √ 4-x