Find the balance of a savings account at the end of 10 years if the Interest earned each year is 7.5%. The principal is $500

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°

Find the arc length of the semicircle. 7the grade

Can someone show me step by step how to do this?