What is the area, in square units, of ΔDEF with D(5,−1) E(1,−4), and F(−5,4)? A. 25 square units
B. 37.5 square units
C. 50 square units
D. 75 square units

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

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!

Urgent? will give brainliest given that the blue triangle is a right triangle, which expression correctly gives the area of the red square? a) a2 + b2 b) a2 - b2 c) a2 - c2 d) c2 - a2