37 will be needed if she continues
Answer:
? = 43.8°
Step-by-step explanation:
cos ? = 13/18 = 0.7222
? = 43.8°
Answer:
Step-by-step explanation:

Answer:
b = (d - c)/a
Step-by-step explanation:
ab + c = d
ab = d - c
b = (d - c)/a
1: Look at the 4, its a lot easier to multiply 5 x 5 rather than 5 x 4, plus if you are estimating, you are going to round either up or down.
2: Multiply 5 x 5 // the answer is 25.
3: Multiply 5 x 4 (the original) // which is 20.