The answer is 4.27 if it’s the blue painted ones
The right answer is first option: 7+21
Step-by-step explanation:
Given expression is;
7(1+3)
In mathematics, the term outside is multiplied by each term inside the bracket, therefore, in this expression;

The given expression 7(1+3) is equals to 7+21.
The right answer is first option: 7+21
Keywords: multiplication, addition
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Answer:
I’m not good at algebra but I think that qx = -4 and qy = -7? I tried I’m not good at algebra.
Step-by-step explanation:
qy= -7 plus px= 3 equals -4
im not good at algebra
Answer:

Step-by-step explanation:
Let x represents the number of nights Jack worked and y represents the number of nights Diane worked.
1. The number of nights Diane is scheduled to work is no more than four times the number of nights Jack is scheduled to play. Then

2. Diane will work at least 10 times before the concert. Then

3. Jack earns $50 per night that he plays, then he earned $50x in x nights. Diane earns $25 each night she works, then she earns $25y in y nigths. They need at least $750, so

4. We get the following set of constraints to model the problem:

Answer:
26,000,000 codes
Step-by-step explanation:
To find how many unique codes can be created, we just need to check how many possibilities there are for each letter or digit in the code.
Each letter has 26 possible values, and each digit has 10 possible values, so as we have 1 letter and 6 digits, the total number of unique codes are:
26 * 10 * 10 * 10 * 10 * 10 * 10 = 26,000,000 codes.