Here is a list of numbers. -45
-21
-16
12
33
40
a) Write down two numbers from the list that add up to -9.
-16 and 12
b) Write down two numbers from the list that have a difference of 29.
c) Work out the sum of all the numbers in the list.
Negatives - Adding and Subtracting
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Overview
FOUNDATION 1a - Integers and Place Val
Clin 68

idk this answer sorry cant on this one.

step-by-step explanation:

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest

they would have to work 32 hours.