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?

Acamper leaves camp on a kayak and travels 50 miles east on a river, then he ties his kayak to the bank and travels 20 miles north on a bicycle. this trip can be plotted on the coordinate plane, where the camp is the point (0, 0). the distant of the camper to the camp can be found using the distance formula. which other formula can he use? a) 502 - 202 b) 502 + 202 c) 502 - 202 d) 502 + 202

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

Which of the following is true for the relation f(x)=2x^2+1