Answer:
it is -30.
Step-by-step explanation:
21-30=-9
-9-30=-39
-39-30=-69
Answer:
i think it’s B
Step-by-step explanation:
Answer:
12 weeks
Step-by-step explanation:
idk just guessing
Answer:
22
Step-by-step explanation:
Order of Operations: BPEMDAS
Step 1: Write out expression
40 - 2 × 3²
Step 2: Exponents
40 - 2 × 9
Step 3: Multiply
40 - 18
Step 4: Subtract
22
Step-by-step explanation: x= 2-y then plug that in for x so y= 2-y+2;
y=4-y; -4y=-y; y=-1/4