Given that sin 72◦ is approximately 0.951, write the cosine of complementary angle.

A. 72◦ B. 90◦ C. 18◦ D. 17◦

Solve the problem by making up an equation. a child is 12 years old, and his father is 32 years older. in how many years will the age of the father be 3 times the age of the child?

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Select the two pairs of figures that are similar.