30. A rectangle has dimensions (3x + 1) cm by (2x + 1) cm. Given that the area of the rectangle is 117 cm", find (i) the value of x,
(ii) the perimeter of the rectangle.​

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x