In a group of 30 people, 9 people study French and 14 people study Spanish. Seven people study both French and Spanish. What is the probability of studying either French or Spanish?

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?

Amotorboat maintained a constant speed of 12 miles per hour relative to the water in going 45 miles upstream and then returning. the total time for the trip was 8.0 hours. use this information to find the speed of the current.