Step-by-step explanation:
lenght = x + 8
width = x

then
Lenght = x + 8 = 20 + 8 = 28
Width = x = 20
500×12%
(500×12)÷100
6000÷100
=60
so,
500+60=560
Answer:
16
Step-by-step explanation:
because i said so c:
Kristen completed 42 km. We will imagine that she ran all 6 hours. => 9 * 6 =54 km which is more than she actually completed. So we will find a 9 Multiple less than 42 km and that will be 36 km. (9 * 4 = 36 km completed by running) and the rest until 42 were completed by walking (3 * 2 = 6; 6 + 36 =42).