7th grade math 10 points
1.) jill began to solve an equation.
which expression below shows the next step jill needs to take?
jill’s solution:
y divided by (-2)=4.5
y divided by (-2)*(-2)
a.
4.5 • (–2)
b.
4.5 ÷ (–2)
c.
4.5 + (–2)
d.
4.5 – (–2)

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?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Can someone tell me if this is perpendicular? !