Answer:
10
Step-by-step explanation:
"three times r" = 3r
"three times r minus ten" = 3r - 10
"product of 5 and the difference of three times r minus ten"
= 5 (3r - 10)
given that r = 4,
the expression becomes
5 (3r - 10)
= 5 [3(4) - 10]
= 5 [12 - 10]
= 5 (2)
= 10
5 x 0.4 = 2 and

= 1.4142....... which is an irrational number
I don’t know if its just me but i can’t see the picture, im really sorry :/
Answer:
20
Step-by-step explanation:
0 to 1 = a difference of 1
1 to 2 = a difference of 2-1 = 1
===============
2 to 4 = a difference of 2
4 to 6 = a difference of 2
===============
6 to 9 = a difference of 3
9 to 12 = a difference of 3
===============
12 to 16 = a difference of 4
16 to 20 = a difference of 4