1) 2.5% of what number is 15? 2)7½% of what number is 12? 3) 14 is what percent of 96?

What ia the sum if the first 7 terms of the geometric series

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.