At Lena's gymnastics camp, the gymnasts spent 2 hours and 50 minutes on the balance beam and 1 hour and 45 minutes practicing vaulting. If the gymnastics camp ended at 5:30 P. M., What time did it start?

What situation is an example of an observational study

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Type the correct answer in each box. use numerals instead of words. if necessary, use / fir the fraction bar(s). the graph represents the piecewise function: h