Ricardo's employer pays 90% of the total cost of his family's health insurance plan, while ricardo pays the rest. if the total cost of the plan will increase from $550 per month to $700 per month, how much more will ricardo have to pay each month?

$135 more

Step-by-step explanation:

700-550= 150

.90 x 150 = 135

he will have to pay $135 more

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116