1/2x(25-7). Difference means to subtract. And then just multiply by 1/2 since it is asking for half.
Answer: I'm not so sure but my answer is 101 tiles.
Step-by-step explanation:
Because the probability of choosing a vowel is 40%, and there are 72 consonants, so we would set up the equaiton like this:
72 times 40% (0.40) = 28.8 (round up to 29)
So we have 72 consonants and 29 vowels. Add them up:
72+29 = 101
A = (20-2) × 180
A = 3240 ÷ 20
A = 162°
exterior = 18°
interior = 162°
i am a mathematics teacher. if anything to ask please pm me
