Answer:
z = 1
Step-by-step explanation:
yes
Answer:2y + 2z
Step-by-step explanation: you need to multiply the number outside of the parenthesis with the one inside like.
is the score of Jonathan.
<h3 /><h3>What is percentage?</h3>
Percentage, which may also be referred to as percent, is a fraction of a number out of 100%. Percentage means "per 100" and denotes a piece of a total amount.
To calculate the percentage , Use the percentage formula:

According to the question:
Sarah scored on the spelling test = 
Jonathan scored = 75%
By formulating both the values;

= 
Therefore ,
is the score of Jonathan.
Learn more about percentage here:
brainly.com/question/13450942
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Answer:
x = 25 ft
Step-by-step explanation:
here we see the student standing and creating a small triangle that is equivalent to the big triangle since it has the same angles, the only difference is that its smaller, so what we have to do is make a proportion of both triangles, so since 8 ft correspond with the 40 ft they're going to be in the same part of the proportion and the other measurements, including x, on the other part, so itll be 5/8 and x/40, see how the 8 and 40 are both on the bottom? thats because they correspond, so now all you have to do is cross butterfly, so you can set up an expression on 8x= 5*40 or you can just multiply 5*40 and then divide by 8, your answer will be x= 25 ft
28 cans of soda into 2 groups in which the ratio is 3:4
3 x 4 = 12
4 x 4 = 16
12 + 16 = 28
you will put 12 cans in one group and 16 cans in another group
hope this helps