The sum of two numbers is 68 . the large number is 16 more than the smaller number. what are the numbers

∠1 and ∠2 are complementary. ∠1=x°∠2=(3x+30)° select from the drop down menu to correctly answer the question. what is the value of x? . a.15 b.25 c.30 d.40 e.55

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1

Multiplying fractions by whole number 5 x 1/3=?