angle a and angle b are both complementary angles. the measure of angle b is (4x) and the measure of angle a is 50. whats the value of x show work. answer asap please

Which expression is equivalent to? assume x > 0 and y > 0.

Awall map has a scale of 128 miles = 6 inches. the distance between springfield and lakeview is 2 feet on the map. what is the actual distance between springfield and lakeview? 384 miles 512 miles 1.13 miles 42.7 miles

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"