Work out this fraction equation 4 1/2 /3/5

Estimate the product. round the first factor to the nearest whole number, round the second factor to the nearest ten, and then multiply. 3 8/9 × 96

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is