Each week marissa withdraws the same amount from her bank account the equation
a=1550-90w represent the relationship between the amount of money remaining in her account ,a, in dollars , and the number of weeks of withdraws ,w.
for how many weeks has marissa made withdraws when the amount remaining in the
account is $110? ?
a)14
b)16
c)17
d)18

The sum of two numbers is 86, and their difference is 20. find the two numbers

What is the x-intercept and y-intercept of the equation 2x+1. 2o

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.