14 will be your whole number and your fraction would be 63/100, so the entire thing as a mixed number is 14 63/100
A² = c² - b²
a² = 21² - 13 ²
a² = 441 - 169
a² = 272
a = √272 = 16.49242 ≈ 16.49
Answer : D ) 16.49
Not sure for (b)
Step-by-step explanation:
(a)55+80+x=180 (angles inside the triangle)
135+×=+180
x=180-135
x=45
____________________________False
3x - 15
less than or more than trick-------> the number before those words should be the second number in the equation