Answer:
Frances and his sister is 8 and 7 years old respectively.
B) 5 units
Step-by-step explanation:
3-(-1)²+-1-(-4)²=c²
4²+3²=c²
16+9=c²
25=c²
√25=c
5=c
A
4^3+7=4^10
30
538 = 540
509 = 510
40 - 10 = 30
y = 0
y =1/2(4)-2
y= 2-2
y=0
