Please help me with number 6 :((

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

Askateboard ramp is in the shape of a right triangle what is the height of the ramp