Which number line represents the solution to the inequality 4x +20 <40

Two parallel lines are crossed by a transversal.what is value of x

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

Solve the triangle. a = 21°, c = 105°, c = 5