Hey guys I can't figure out what 409 x 35 is can you help?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Corresponding angles are a. always b. sometimes c. never congruent

Recall that two angles are complementary if the sum of their measures is? 90°. find the measures of two complementary angles if one angle is twenty dash nine times the other angle.