Answer:
1) 
2) 
3) 
Step-by-step explanation:
1) Length of a ruler = r
Height of Shiela = s
According to the question ,
5 times the length of a ruler increased by 2 .
⇒ 
Also , 5r + 2 is less than height of Shiela.
Hence , the linear inequality is ⇒ 
2) Let the cost of each t-shirt be 't' & cost of each short be 's'.
⇒ Cost of dozen of t-shirts = 12t and Cost of half a dozen shorts = 6s
According to the question ,
12t & 6s is not greater than Php 960.
Hence the linear inequality is ⇒ 
3) Let the number of Php 100-peso tickets be 'p' and let the number of Php 50-peso tickets be 'q'.
According to the question ,
Difference of p & q is not less than 30
Hence the linear inequality is ⇒
I only one person rode a tricycle - that would leave 23 wheels and you cannot make a complete number of bicycles
If 2 people rode tricycles that would leave 20 wheels which would seat 10 bicyclists.
But that totals up to 12 people
3 people riding tricyles leaves 15 wheels which will not complete a number of bicycles
4 people riding tricycles (4 x 3) leaves 14 wheels for 7 bicyclist and is the answer
4 trike riders (12 wheels) + 7 bike riders (14 wheels) = 11 people and 26 wheels
Uhh could you please include a image or something to help someone know it more Cleary with what you need help with
Answer:
261.71
Step-by-step explanation:
The calculation of days is shown below:-

where,
Mean = 270
standard deviation is 8
And, the normsinv is -1.036
Now placing these values to the above formula
So, the number of days is
= 270 + (-1.036433389) × 8
= 270 + (-8.29146711)
= 261.708533
or
= 261.71
Therefore for computing the number of days we simply applied the above formula and for (-1.036433389) please find in the attachment.