Answer:
i think it is 61
Step-by-step explanation:
Answer:
y=4
Step-by-step explanation:
4y + 3 =19
4y = 16
y= 4
For 1
Twice a number means
A number used two times
Is that number was x
What do we do to x
Answer:
see below
Step-by-step explanation:
given:
radius of a circle = 3cm
find:
1. diameter
2. radius
3. r²
1) diameter = twice the radius = 2 r = 2 (3) = 6 cm
2) radius = 3 cm
3) r² = 3² = 9 cm
