mary has 200ml of hand sanitizer that is 15% alcohol she mixes it with 200ml of a hand sanitizer that is x% alcohol how many ml of alcohol is in the 2nd hand sanitizer?

The triangles are similar. what is the value of x? show your work.

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary