Solve the following using front-end estimation 2.85+1.34
a. $2+$1=$3
b. $2+$1+$1=$4
c.$2+$1+$2=$5
d.$3+$2=$5

Perform the indicated operation. 8/a - 6/a + 7/a

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?