It takes robin 3 hours to mow the lawn and 1 hour to pull the weeds in her garden. she does both four times a month. use a problem-solving plan to find how much time she spends on yard work in a month.

16 hours.

Step-by-step explanation:

There is 30 days in a month, if Robin takes 3 hours to mow the lawn and does this four times a month that would be 12 hours, if she takes 1 hour to pull weeds and does this 4 times as well that would be 4. 4+12 would equal 16 hours.

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two